20841360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2347}}^1$

素因数の和:2400

約数の個数: 80

約数和(自身を含む): 66382656

約数和(自身を除く): 45541296

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 37, 40, 48, 60, 74, 80, 111, 120, 148, 185, 222, 240, 296, 370, 444, 555, 592, 740, 888, 1110, 1480, 1776, 2220, 2347, 2960, 4440, 4694, 7041, 8880, 9388, 11735, 14082, 18776, 23470, 28164, 35205, 37552, 46940, 56328, 70410, 86839, 93880, 112656, 140820, 173678, 187760, 260517, 281640, 347356, 434195, 521034, 563280, 694712, 868390, 1042068, 1302585, 1389424, 1736780, 2084136, 2605170, 3473560, 4168272, 5210340, 6947120, 10420680, 20841360]

約数ペア:

[(1, 20841360), (2, 10420680), (3, 6947120), (4, 5210340), (5, 4168272), (6, 3473560), (8, 2605170), (10, 2084136), (12, 1736780), (15, 1389424), (16, 1302585), (20, 1042068), (24, 868390), (30, 694712), (37, 563280), (40, 521034), (48, 434195), (60, 347356), (74, 281640), (80, 260517), (111, 187760), (120, 173678), (148, 140820), (185, 112656), (222, 93880), (240, 86839), (296, 70410), (370, 56328), (444, 46940), (555, 37552), (592, 35205), (740, 28164), (888, 23470), (1110, 18776), (1480, 14082), (1776, 11735), (2220, 9388), (2347, 8880), (2960, 7041), (4440, 4694)]