1640887940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{81799}}^1$

素因数の和:81884

約数の個数: 48

約数和(自身を含む): 3710448000

約数和(自身を除く): 2069560060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 59, 68, 85, 118, 170, 236, 295, 340, 590, 1003, 1180, 2006, 4012, 5015, 10030, 20060, 81799, 163598, 327196, 408995, 817990, 1390583, 1635980, 2781166, 4826141, 5562332, 6952915, 9652282, 13905830, 19304564, 24130705, 27811660, 48261410, 82044397, 96522820, 164088794, 328177588, 410221985, 820443970, 1640887940]

約数ペア:

[(1, 1640887940), (2, 820443970), (4, 410221985), (5, 328177588), (10, 164088794), (17, 96522820), (20, 82044397), (34, 48261410), (59, 27811660), (68, 24130705), (85, 19304564), (118, 13905830), (170, 9652282), (236, 6952915), (295, 5562332), (340, 4826141), (590, 2781166), (1003, 1635980), (1180, 1390583), (2006, 817990), (4012, 408995), (5015, 327196), (10030, 163598), (20060, 81799)]