20479992

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1601}}^1$

素因数の和:1664

約数の個数: 64

約数和(自身を含む): 56518560

約数和(自身を除く): 36038568

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 41, 52, 78, 82, 104, 123, 156, 164, 246, 312, 328, 492, 533, 984, 1066, 1599, 1601, 2132, 3198, 3202, 4264, 4803, 6396, 6404, 9606, 12792, 12808, 19212, 20813, 38424, 41626, 62439, 65641, 83252, 124878, 131282, 166504, 196923, 249756, 262564, 393846, 499512, 525128, 787692, 853333, 1575384, 1706666, 2559999, 3413332, 5119998, 6826664, 10239996, 20479992]

約数ペア:

[(1, 20479992), (2, 10239996), (3, 6826664), (4, 5119998), (6, 3413332), (8, 2559999), (12, 1706666), (13, 1575384), (24, 853333), (26, 787692), (39, 525128), (41, 499512), (52, 393846), (78, 262564), (82, 249756), (104, 196923), (123, 166504), (156, 131282), (164, 124878), (246, 83252), (312, 65641), (328, 62439), (492, 41626), (533, 38424), (984, 20813), (1066, 19212), (1599, 12808), (1601, 12792), (2132, 9606), (3198, 6404), (3202, 6396), (4264, 4803)]