1657999120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{20663}}^1$

素因数の和:20752

約数の個数: 80

約数和(自身を含む): 4150984320

約数和(自身を除く): 2492985200

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 59, 68, 80, 85, 118, 136, 170, 236, 272, 295, 340, 472, 590, 680, 944, 1003, 1180, 1360, 2006, 2360, 4012, 4720, 5015, 8024, 10030, 16048, 20060, 20663, 40120, 41326, 80240, 82652, 103315, 165304, 206630, 330608, 351271, 413260, 702542, 826520, 1219117, 1405084, 1653040, 1756355, 2438234, 2810168, 3512710, 4876468, 5620336, 6095585, 7025420, 9752936, 12191170, 14050840, 19505872, 20724989, 24382340, 28101680, 41449978, 48764680, 82899956, 97529360, 103624945, 165799912, 207249890, 331599824, 414499780, 828999560, 1657999120]

約数ペア:

[(1, 1657999120), (2, 828999560), (4, 414499780), (5, 331599824), (8, 207249890), (10, 165799912), (16, 103624945), (17, 97529360), (20, 82899956), (34, 48764680), (40, 41449978), (59, 28101680), (68, 24382340), (80, 20724989), (85, 19505872), (118, 14050840), (136, 12191170), (170, 9752936), (236, 7025420), (272, 6095585), (295, 5620336), (340, 4876468), (472, 3512710), (590, 2810168), (680, 2438234), (944, 1756355), (1003, 1653040), (1180, 1405084), (1360, 1219117), (2006, 826520), (2360, 702542), (4012, 413260), (4720, 351271), (5015, 330608), (8024, 206630), (10030, 165304), (16048, 103315), (20060, 82652), (20663, 80240), (40120, 41326)]