17880590

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{401}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 40521600

約数和(自身を除く): 22641010

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 343, 401, 455, 490, 637, 686, 802, 910, 1274, 1715, 2005, 2807, 3185, 3430, 4010, 4459, 5213, 5614, 6370, 8918, 10426, 14035, 19649, 22295, 26065, 28070, 36491, 39298, 44590, 52130, 72982, 98245, 137543, 182455, 196490, 255437, 275086, 364910, 510874, 687715, 1277185, 1375430, 1788059, 2554370, 3576118, 8940295, 17880590]

約数ペア:

[(1, 17880590), (2, 8940295), (5, 3576118), (7, 2554370), (10, 1788059), (13, 1375430), (14, 1277185), (26, 687715), (35, 510874), (49, 364910), (65, 275086), (70, 255437), (91, 196490), (98, 182455), (130, 137543), (182, 98245), (245, 72982), (343, 52130), (401, 44590), (455, 39298), (490, 36491), (637, 28070), (686, 26065), (802, 22295), (910, 19649), (1274, 14035), (1715, 10426), (2005, 8918), (2807, 6370), (3185, 5614), (3430, 5213), (4010, 4459)]