8708291840

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{219463}}^1$

素因数の和:219515

約数の個数: 72

約数和(自身を含む): 21532051968

約数和(自身を除く): 12823760128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 39680, 219463, 438926, 877852, 1097315, 1755704, 2194630, 3511408, 4389260, 6803353, 7022816, 8778520, 13606706, 14045632, 17557040, 27213412, 28091264, 34016765, 35114080, 54426824, 56182528, 68033530, 70228160, 108853648, 136067060, 140456320, 217707296, 272134120, 280912640, 435414592, 544268240, 870829184, 1088536480, 1741658368, 2177072960, 4354145920, 8708291840]

約数ペア:

[(1, 8708291840), (2, 4354145920), (4, 2177072960), (5, 1741658368), (8, 1088536480), (10, 870829184), (16, 544268240), (20, 435414592), (31, 280912640), (32, 272134120), (40, 217707296), (62, 140456320), (64, 136067060), (80, 108853648), (124, 70228160), (128, 68033530), (155, 56182528), (160, 54426824), (248, 35114080), (256, 34016765), (310, 28091264), (320, 27213412), (496, 17557040), (620, 14045632), (640, 13606706), (992, 8778520), (1240, 7022816), (1280, 6803353), (1984, 4389260), (2480, 3511408), (3968, 2194630), (4960, 1755704), (7936, 1097315), (9920, 877852), (19840, 438926), (39680, 219463)]