20194990205

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1\times {\mathrm{331}}^1$

素因数の和:738

約数の個数: 64

約数和(自身を含む): 27211548672

約数和(自身を除く): 7016558467

約数列:

[1, 5, 13, 43, 65, 83, 215, 263, 331, 415, 559, 1079, 1315, 1655, 2795, 3419, 3569, 4303, 5395, 11309, 14233, 17095, 17845, 21515, 21829, 27473, 46397, 56545, 71165, 87053, 109145, 137365, 147017, 185029, 231985, 283777, 357149, 435265, 735085, 925145, 938647, 1131689, 1181339, 1418885, 1785745, 3743279, 4693235, 5658445, 5906695, 7225399, 12202411, 15357407, 18716395, 36126995, 48662627, 61012055, 76787035, 93930187, 243313135, 310692157, 469650935, 1553460785, 4038998041, 20194990205]

約数ペア:

[(1, 20194990205), (5, 4038998041), (13, 1553460785), (43, 469650935), (65, 310692157), (83, 243313135), (215, 93930187), (263, 76787035), (331, 61012055), (415, 48662627), (559, 36126995), (1079, 18716395), (1315, 15357407), (1655, 12202411), (2795, 7225399), (3419, 5906695), (3569, 5658445), (4303, 4693235), (5395, 3743279), (11309, 1785745), (14233, 1418885), (17095, 1181339), (17845, 1131689), (21515, 938647), (21829, 925145), (27473, 735085), (46397, 435265), (56545, 357149), (71165, 283777), (87053, 231985), (109145, 185029), (137365, 147017)]