19901740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{631}}^1$

素因数の和:742

約数の個数: 48

約数和(自身を含む): 44593920

約数和(自身を除く): 24692180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 83, 95, 166, 190, 332, 380, 415, 631, 830, 1262, 1577, 1660, 2524, 3154, 3155, 6308, 6310, 7885, 11989, 12620, 15770, 23978, 31540, 47956, 52373, 59945, 104746, 119890, 209492, 239780, 261865, 523730, 995087, 1047460, 1990174, 3980348, 4975435, 9950870, 19901740]

約数ペア:

[(1, 19901740), (2, 9950870), (4, 4975435), (5, 3980348), (10, 1990174), (19, 1047460), (20, 995087), (38, 523730), (76, 261865), (83, 239780), (95, 209492), (166, 119890), (190, 104746), (332, 59945), (380, 52373), (415, 47956), (631, 31540), (830, 23978), (1262, 15770), (1577, 12620), (1660, 11989), (2524, 7885), (3154, 6310), (3155, 6308)]