81729480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{653}}^1$

素因数の和:823

約数の個数: 128

約数和(自身を含む): 282528000

約数和(自身を除く): 200798520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 149, 168, 210, 280, 298, 420, 447, 596, 653, 745, 840, 894, 1043, 1192, 1306, 1490, 1788, 1959, 2086, 2235, 2612, 2980, 3129, 3265, 3576, 3918, 4172, 4470, 4571, 5215, 5224, 5960, 6258, 6530, 7836, 8344, 8940, 9142, 9795, 10430, 12516, 13060, 13713, 15645, 15672, 17880, 18284, 19590, 20860, 22855, 25032, 26120, 27426, 31290, 36568, 39180, 41720, 45710, 54852, 62580, 68565, 78360, 91420, 97297, 109704, 125160, 137130, 182840, 194594, 274260, 291891, 389188, 486485, 548520, 583782, 681079, 778376, 972970, 1167564, 1362158, 1459455, 1945940, 2043237, 2335128, 2724316, 2918910, 3405395, 3891880, 4086474, 5448632, 5837820, 6810790, 8172948, 10216185, 11675640, 13621580, 16345896, 20432370, 27243160, 40864740, 81729480]

約数ペア:

[(1, 81729480), (2, 40864740), (3, 27243160), (4, 20432370), (5, 16345896), (6, 13621580), (7, 11675640), (8, 10216185), (10, 8172948), (12, 6810790), (14, 5837820), (15, 5448632), (20, 4086474), (21, 3891880), (24, 3405395), (28, 2918910), (30, 2724316), (35, 2335128), (40, 2043237), (42, 1945940), (56, 1459455), (60, 1362158), (70, 1167564), (84, 972970), (105, 778376), (120, 681079), (140, 583782), (149, 548520), (168, 486485), (210, 389188), (280, 291891), (298, 274260), (420, 194594), (447, 182840), (596, 137130), (653, 125160), (745, 109704), (840, 97297), (894, 91420), (1043, 78360), (1192, 68565), (1306, 62580), (1490, 54852), (1788, 45710), (1959, 41720), (2086, 39180), (2235, 36568), (2612, 31290), (2980, 27426), (3129, 26120), (3265, 25032), (3576, 22855), (3918, 20860), (4172, 19590), (4470, 18284), (4571, 17880), (5215, 15672), (5224, 15645), (5960, 13713), (6258, 13060), (6530, 12516), (7836, 10430), (8344, 9795), (8940, 9142)]