20843680

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{911}}^1$

素因数の和:950

約数の個数: 96

約数和(自身を含む): 57915648

約数和(自身を除く): 37071968

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 160, 176, 208, 220, 260, 286, 352, 416, 440, 520, 572, 715, 880, 911, 1040, 1144, 1430, 1760, 1822, 2080, 2288, 2860, 3644, 4555, 4576, 5720, 7288, 9110, 10021, 11440, 11843, 14576, 18220, 20042, 22880, 23686, 29152, 36440, 40084, 47372, 50105, 59215, 72880, 80168, 94744, 100210, 118430, 130273, 145760, 160336, 189488, 200420, 236860, 260546, 320672, 378976, 400840, 473720, 521092, 651365, 801680, 947440, 1042184, 1302730, 1603360, 1894880, 2084368, 2605460, 4168736, 5210920, 10421840, 20843680]

約数ペア:

[(1, 20843680), (2, 10421840), (4, 5210920), (5, 4168736), (8, 2605460), (10, 2084368), (11, 1894880), (13, 1603360), (16, 1302730), (20, 1042184), (22, 947440), (26, 801680), (32, 651365), (40, 521092), (44, 473720), (52, 400840), (55, 378976), (65, 320672), (80, 260546), (88, 236860), (104, 200420), (110, 189488), (130, 160336), (143, 145760), (160, 130273), (176, 118430), (208, 100210), (220, 94744), (260, 80168), (286, 72880), (352, 59215), (416, 50105), (440, 47372), (520, 40084), (572, 36440), (715, 29152), (880, 23686), (911, 22880), (1040, 20042), (1144, 18220), (1430, 14576), (1760, 11843), (1822, 11440), (2080, 10021), (2288, 9110), (2860, 7288), (3644, 5720), (4555, 4576)]