155185220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{971}}^1$

素因数の和:1172

約数の個数: 48

約数和(自身を含む): 334103616

約数和(自身を除く): 178918396

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 131, 244, 262, 305, 524, 610, 655, 971, 1220, 1310, 1942, 2620, 3884, 4855, 7991, 9710, 15982, 19420, 31964, 39955, 59231, 79910, 118462, 127201, 159820, 236924, 254402, 296155, 508804, 592310, 636005, 1184620, 1272010, 2544020, 7759261, 15518522, 31037044, 38796305, 77592610, 155185220]

約数ペア:

[(1, 155185220), (2, 77592610), (4, 38796305), (5, 31037044), (10, 15518522), (20, 7759261), (61, 2544020), (122, 1272010), (131, 1184620), (244, 636005), (262, 592310), (305, 508804), (524, 296155), (610, 254402), (655, 236924), (971, 159820), (1220, 127201), (1310, 118462), (1942, 79910), (2620, 59231), (3884, 39955), (4855, 31964), (7991, 19420), (9710, 15982)]