398801520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{311}}^1$

素因数の和:480

約数の個数: 240

約数和(自身を含む): 1457531712

約数和(自身を除く): 1058730192

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 137, 144, 156, 180, 195, 208, 234, 240, 260, 274, 311, 312, 360, 390, 411, 468, 520, 548, 585, 622, 624, 685, 720, 780, 822, 933, 936, 1040, 1096, 1170, 1233, 1244, 1370, 1555, 1560, 1644, 1781, 1866, 1872, 2055, 2192, 2340, 2466, 2488, 2740, 2799, 3110, 3120, 3288, 3562, 3732, 4043, 4110, 4665, 4680, 4932, 4976, 5343, 5480, 5598, 6165, 6220, 6576, 7124, 7464, 8086, 8220, 8905, 9330, 9360, 9864, 10686, 10960, 11196, 12129, 12330, 12440, 13995, 14248, 14928, 16029, 16172, 16440, 17810, 18660, 19728, 20215, 21372, 22392, 24258, 24660, 24880, 26715, 27990, 28496, 32058, 32344, 32880, 35620, 36387, 37320, 40430, 42607, 42744, 44784, 48516, 49320, 53430, 55980, 60645, 64116, 64688, 71240, 72774, 74640, 80145, 80860, 85214, 85488, 97032, 98640, 106860, 111960, 121290, 127821, 128232, 142480, 145548, 160290, 161720, 170428, 181935, 194064, 213035, 213720, 223920, 242580, 255642, 256464, 291096, 320580, 323440, 340856, 363870, 383463, 426070, 427440, 485160, 511284, 553891, 582192, 639105, 641160, 681712, 727740, 766926, 852140, 970320, 1022568, 1107782, 1278210, 1282320, 1455480, 1533852, 1661673, 1704280, 1917315, 2045136, 2215564, 2556420, 2769455, 2910960, 3067704, 3323346, 3408560, 3834630, 4431128, 4985019, 5112840, 5538910, 6135408, 6646692, 7669260, 8308365, 8862256, 9970038, 10225680, 11077820, 13293384, 15338520, 16616730, 19940076, 22155640, 24925095, 26586768, 30677040, 33233460, 39880152, 44311280, 49850190, 66466920, 79760304, 99700380, 132933840, 199400760, 398801520]

約数ペア:

[(1, 398801520), (2, 199400760), (3, 132933840), (4, 99700380), (5, 79760304), (6, 66466920), (8, 49850190), (9, 44311280), (10, 39880152), (12, 33233460), (13, 30677040), (15, 26586768), (16, 24925095), (18, 22155640), (20, 19940076), (24, 16616730), (26, 15338520), (30, 13293384), (36, 11077820), (39, 10225680), (40, 9970038), (45, 8862256), (48, 8308365), (52, 7669260), (60, 6646692), (65, 6135408), (72, 5538910), (78, 5112840), (80, 4985019), (90, 4431128), (104, 3834630), (117, 3408560), (120, 3323346), (130, 3067704), (137, 2910960), (144, 2769455), (156, 2556420), (180, 2215564), (195, 2045136), (208, 1917315), (234, 1704280), (240, 1661673), (260, 1533852), (274, 1455480), (311, 1282320), (312, 1278210), (360, 1107782), (390, 1022568), (411, 970320), (468, 852140), (520, 766926), (548, 727740), (585, 681712), (622, 641160), (624, 639105), (685, 582192), (720, 553891), (780, 511284), (822, 485160), (933, 427440), (936, 426070), (1040, 383463), (1096, 363870), (1170, 340856), (1233, 323440), (1244, 320580), (1370, 291096), (1555, 256464), (1560, 255642), (1644, 242580), (1781, 223920), (1866, 213720), (1872, 213035), (2055, 194064), (2192, 181935), (2340, 170428), (2466, 161720), (2488, 160290), (2740, 145548), (2799, 142480), (3110, 128232), (3120, 127821), (3288, 121290), (3562, 111960), (3732, 106860), (4043, 98640), (4110, 97032), (4665, 85488), (4680, 85214), (4932, 80860), (4976, 80145), (5343, 74640), (5480, 72774), (5598, 71240), (6165, 64688), (6220, 64116), (6576, 60645), (7124, 55980), (7464, 53430), (8086, 49320), (8220, 48516), (8905, 44784), (9330, 42744), (9360, 42607), (9864, 40430), (10686, 37320), (10960, 36387), (11196, 35620), (12129, 32880), (12330, 32344), (12440, 32058), (13995, 28496), (14248, 27990), (14928, 26715), (16029, 24880), (16172, 24660), (16440, 24258), (17810, 22392), (18660, 21372), (19728, 20215)]