21370680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:158

約数の個数: 192

約数和(自身を含む): 75816000

約数和(自身を除く): 54445320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 29, 30, 36, 40, 45, 46, 58, 60, 69, 72, 87, 89, 90, 92, 115, 116, 120, 138, 145, 174, 178, 180, 184, 207, 230, 232, 261, 267, 276, 290, 345, 348, 356, 360, 414, 435, 445, 460, 522, 534, 552, 580, 667, 690, 696, 712, 801, 828, 870, 890, 920, 1035, 1044, 1068, 1160, 1305, 1334, 1335, 1380, 1602, 1656, 1740, 1780, 2001, 2047, 2070, 2088, 2136, 2581, 2610, 2668, 2670, 2760, 3204, 3335, 3480, 3560, 4002, 4005, 4094, 4140, 5162, 5220, 5336, 5340, 6003, 6141, 6408, 6670, 7743, 8004, 8010, 8188, 8280, 10005, 10235, 10324, 10440, 10680, 12006, 12282, 12905, 13340, 15486, 16008, 16020, 16376, 18423, 20010, 20470, 20648, 23229, 24012, 24564, 25810, 26680, 30015, 30705, 30972, 32040, 36846, 38715, 40020, 40940, 46458, 48024, 49128, 51620, 59363, 60030, 61410, 61944, 73692, 77430, 80040, 81880, 92115, 92916, 103240, 116145, 118726, 120060, 122820, 147384, 154860, 178089, 184230, 185832, 232290, 237452, 240120, 245640, 296815, 309720, 356178, 368460, 464580, 474904, 534267, 593630, 712356, 736920, 890445, 929160, 1068534, 1187260, 1424712, 1780890, 2137068, 2374520, 2671335, 3561780, 4274136, 5342670, 7123560, 10685340, 21370680]

約数ペア:

[(1, 21370680), (2, 10685340), (3, 7123560), (4, 5342670), (5, 4274136), (6, 3561780), (8, 2671335), (9, 2374520), (10, 2137068), (12, 1780890), (15, 1424712), (18, 1187260), (20, 1068534), (23, 929160), (24, 890445), (29, 736920), (30, 712356), (36, 593630), (40, 534267), (45, 474904), (46, 464580), (58, 368460), (60, 356178), (69, 309720), (72, 296815), (87, 245640), (89, 240120), (90, 237452), (92, 232290), (115, 185832), (116, 184230), (120, 178089), (138, 154860), (145, 147384), (174, 122820), (178, 120060), (180, 118726), (184, 116145), (207, 103240), (230, 92916), (232, 92115), (261, 81880), (267, 80040), (276, 77430), (290, 73692), (345, 61944), (348, 61410), (356, 60030), (360, 59363), (414, 51620), (435, 49128), (445, 48024), (460, 46458), (522, 40940), (534, 40020), (552, 38715), (580, 36846), (667, 32040), (690, 30972), (696, 30705), (712, 30015), (801, 26680), (828, 25810), (870, 24564), (890, 24012), (920, 23229), (1035, 20648), (1044, 20470), (1068, 20010), (1160, 18423), (1305, 16376), (1334, 16020), (1335, 16008), (1380, 15486), (1602, 13340), (1656, 12905), (1740, 12282), (1780, 12006), (2001, 10680), (2047, 10440), (2070, 10324), (2088, 10235), (2136, 10005), (2581, 8280), (2610, 8188), (2668, 8010), (2670, 8004), (2760, 7743), (3204, 6670), (3335, 6408), (3480, 6141), (3560, 6003), (4002, 5340), (4005, 5336), (4094, 5220), (4140, 5162)]