19593980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{809}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 47355840

約数和(自身を除く): 27761860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 173, 346, 692, 809, 865, 1211, 1618, 1730, 2422, 3236, 3460, 4045, 4844, 5663, 6055, 8090, 11326, 12110, 16180, 22652, 24220, 28315, 56630, 113260, 139957, 279914, 559828, 699785, 979699, 1399570, 1959398, 2799140, 3918796, 4898495, 9796990, 19593980]

約数ペア:

[(1, 19593980), (2, 9796990), (4, 4898495), (5, 3918796), (7, 2799140), (10, 1959398), (14, 1399570), (20, 979699), (28, 699785), (35, 559828), (70, 279914), (140, 139957), (173, 113260), (346, 56630), (692, 28315), (809, 24220), (865, 22652), (1211, 16180), (1618, 12110), (1730, 11326), (2422, 8090), (3236, 6055), (3460, 5663), (4045, 4844)]