20849360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1201}}^1$

素因数の和:1252

約数の個数: 80

約数和(自身を含む): 57234432

約数和(自身を除く): 36385072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1201, 1240, 1736, 2170, 2402, 2480, 3472, 4340, 4804, 6005, 8407, 8680, 9608, 12010, 16814, 17360, 19216, 24020, 33628, 37231, 42035, 48040, 67256, 74462, 84070, 96080, 134512, 148924, 168140, 186155, 260617, 297848, 336280, 372310, 521234, 595696, 672560, 744620, 1042468, 1303085, 1489240, 2084936, 2606170, 2978480, 4169872, 5212340, 10424680, 20849360]

約数ペア:

[(1, 20849360), (2, 10424680), (4, 5212340), (5, 4169872), (7, 2978480), (8, 2606170), (10, 2084936), (14, 1489240), (16, 1303085), (20, 1042468), (28, 744620), (31, 672560), (35, 595696), (40, 521234), (56, 372310), (62, 336280), (70, 297848), (80, 260617), (112, 186155), (124, 168140), (140, 148924), (155, 134512), (217, 96080), (248, 84070), (280, 74462), (310, 67256), (434, 48040), (496, 42035), (560, 37231), (620, 33628), (868, 24020), (1085, 19216), (1201, 17360), (1240, 16814), (1736, 12010), (2170, 9608), (2402, 8680), (2480, 8407), (3472, 6005), (4340, 4804)]