20178830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{547}}^1$

素因数の和:609

約数の個数: 64

約数和(自身を含む): 45453312

約数和(自身を除く): 25274482

約数列:

[1, 2, 5, 7, 10, 14, 17, 31, 34, 35, 62, 70, 85, 119, 155, 170, 217, 238, 310, 434, 527, 547, 595, 1054, 1085, 1094, 1190, 2170, 2635, 2735, 3689, 3829, 5270, 5470, 7378, 7658, 9299, 16957, 18445, 18598, 19145, 33914, 36890, 38290, 46495, 65093, 84785, 92990, 118699, 130186, 169570, 237398, 288269, 325465, 576538, 593495, 650930, 1186990, 1441345, 2017883, 2882690, 4035766, 10089415, 20178830]

約数ペア:

[(1, 20178830), (2, 10089415), (5, 4035766), (7, 2882690), (10, 2017883), (14, 1441345), (17, 1186990), (31, 650930), (34, 593495), (35, 576538), (62, 325465), (70, 288269), (85, 237398), (119, 169570), (155, 130186), (170, 118699), (217, 92990), (238, 84785), (310, 65093), (434, 46495), (527, 38290), (547, 36890), (595, 33914), (1054, 19145), (1085, 18598), (1094, 18445), (1190, 16957), (2170, 9299), (2635, 7658), (2735, 7378), (3689, 5470), (3829, 5270)]