56961980

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 122248224

約数和(自身を除く): 65286244

約数列:

[1, 2, 4, 5, 10, 20, 101, 163, 173, 202, 326, 346, 404, 505, 652, 692, 815, 865, 1010, 1630, 1730, 2020, 3260, 3460, 16463, 17473, 28199, 32926, 34946, 56398, 65852, 69892, 82315, 87365, 112796, 140995, 164630, 174730, 281990, 329260, 349460, 563980, 2848099, 5696198, 11392396, 14240495, 28480990, 56961980]

約数ペア:

[(1, 56961980), (2, 28480990), (4, 14240495), (5, 11392396), (10, 5696198), (20, 2848099), (101, 563980), (163, 349460), (173, 329260), (202, 281990), (326, 174730), (346, 164630), (404, 140995), (505, 112796), (652, 87365), (692, 82315), (815, 69892), (865, 65852), (1010, 56398), (1630, 34946), (1730, 32926), (2020, 28199), (3260, 17473), (3460, 16463)]