1721681520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{1229}}^1$

素因数の和:1707

約数の個数: 160

約数和(自身を含む): 5765256000

約数和(自身を除く): 4043574480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 449, 520, 624, 780, 898, 1040, 1229, 1347, 1560, 1796, 2245, 2458, 2694, 3120, 3592, 3687, 4490, 4916, 5388, 5837, 6145, 6735, 7184, 7374, 8980, 9832, 10776, 11674, 12290, 13470, 14748, 15977, 17511, 17960, 18435, 19664, 21552, 23348, 24580, 26940, 29185, 29496, 31954, 35022, 35920, 36870, 46696, 47931, 49160, 53880, 58370, 58992, 63908, 70044, 73740, 79885, 87555, 93392, 95862, 98320, 107760, 116740, 127816, 140088, 147480, 159770, 175110, 191724, 233480, 239655, 255632, 280176, 294960, 319540, 350220, 383448, 466960, 479310, 551821, 639080, 700440, 766896, 958620, 1103642, 1278160, 1400880, 1655463, 1917240, 2207284, 2759105, 3310926, 3834480, 4414568, 5518210, 6621852, 7173673, 8277315, 8829136, 11036420, 13243704, 14347346, 16554630, 21521019, 22072840, 26487408, 28694692, 33109260, 35868365, 43042038, 44145680, 57389384, 66218520, 71736730, 86084076, 107605095, 114778768, 132437040, 143473460, 172168152, 215210190, 286946920, 344336304, 430420380, 573893840, 860840760, 1721681520]

約数ペア:

[(1, 1721681520), (2, 860840760), (3, 573893840), (4, 430420380), (5, 344336304), (6, 286946920), (8, 215210190), (10, 172168152), (12, 143473460), (13, 132437040), (15, 114778768), (16, 107605095), (20, 86084076), (24, 71736730), (26, 66218520), (30, 57389384), (39, 44145680), (40, 43042038), (48, 35868365), (52, 33109260), (60, 28694692), (65, 26487408), (78, 22072840), (80, 21521019), (104, 16554630), (120, 14347346), (130, 13243704), (156, 11036420), (195, 8829136), (208, 8277315), (240, 7173673), (260, 6621852), (312, 5518210), (390, 4414568), (449, 3834480), (520, 3310926), (624, 2759105), (780, 2207284), (898, 1917240), (1040, 1655463), (1229, 1400880), (1347, 1278160), (1560, 1103642), (1796, 958620), (2245, 766896), (2458, 700440), (2694, 639080), (3120, 551821), (3592, 479310), (3687, 466960), (4490, 383448), (4916, 350220), (5388, 319540), (5837, 294960), (6145, 280176), (6735, 255632), (7184, 239655), (7374, 233480), (8980, 191724), (9832, 175110), (10776, 159770), (11674, 147480), (12290, 140088), (13470, 127816), (14748, 116740), (15977, 107760), (17511, 98320), (17960, 95862), (18435, 93392), (19664, 87555), (21552, 79885), (23348, 73740), (24580, 70044), (26940, 63908), (29185, 58992), (29496, 58370), (31954, 53880), (35022, 49160), (35920, 47931), (36870, 46696)]