209157220

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{823}}^1$

素因数の和:1060

約数の個数: 48

約数和(自身を含む): 447689088

約数和(自身を除く): 238531868

約数列:

[1, 2, 4, 5, 10, 20, 97, 131, 194, 262, 388, 485, 524, 655, 823, 970, 1310, 1646, 1940, 2620, 3292, 4115, 8230, 12707, 16460, 25414, 50828, 63535, 79831, 107813, 127070, 159662, 215626, 254140, 319324, 399155, 431252, 539065, 798310, 1078130, 1596620, 2156260, 10457861, 20915722, 41831444, 52289305, 104578610, 209157220]

約数ペア:

[(1, 209157220), (2, 104578610), (4, 52289305), (5, 41831444), (10, 20915722), (20, 10457861), (97, 2156260), (131, 1596620), (194, 1078130), (262, 798310), (388, 539065), (485, 431252), (524, 399155), (655, 319324), (823, 254140), (970, 215626), (1310, 159662), (1646, 127070), (1940, 107813), (2620, 79831), (3292, 63535), (4115, 50828), (8230, 25414), (12707, 16460)]