19399840

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:194

約数の個数: 96

約数和(自身を含む): 49124880

約数和(自身を除く): 29725040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 37, 40, 58, 74, 80, 113, 116, 145, 148, 160, 185, 226, 232, 290, 296, 370, 452, 464, 565, 580, 592, 740, 904, 928, 1073, 1130, 1160, 1184, 1480, 1808, 2146, 2260, 2320, 2960, 3277, 3616, 4181, 4292, 4520, 4640, 5365, 5920, 6554, 8362, 8584, 9040, 10730, 13108, 16385, 16724, 17168, 18080, 20905, 21460, 26216, 32770, 33448, 34336, 41810, 42920, 52432, 65540, 66896, 83620, 85840, 104864, 121249, 131080, 133792, 167240, 171680, 242498, 262160, 334480, 484996, 524320, 606245, 668960, 969992, 1212490, 1939984, 2424980, 3879968, 4849960, 9699920, 19399840]

約数ペア:

[(1, 19399840), (2, 9699920), (4, 4849960), (5, 3879968), (8, 2424980), (10, 1939984), (16, 1212490), (20, 969992), (29, 668960), (32, 606245), (37, 524320), (40, 484996), (58, 334480), (74, 262160), (80, 242498), (113, 171680), (116, 167240), (145, 133792), (148, 131080), (160, 121249), (185, 104864), (226, 85840), (232, 83620), (290, 66896), (296, 65540), (370, 52432), (452, 42920), (464, 41810), (565, 34336), (580, 33448), (592, 32770), (740, 26216), (904, 21460), (928, 20905), (1073, 18080), (1130, 17168), (1160, 16724), (1184, 16385), (1480, 13108), (1808, 10730), (2146, 9040), (2260, 8584), (2320, 8362), (2960, 6554), (3277, 5920), (3616, 5365), (4181, 4640), (4292, 4520)]