20643090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1291}}^1$

素因数の和:1355

約数の個数: 64

約数和(自身を含む): 54698112

約数和(自身を除く): 34055022

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 41, 65, 78, 82, 123, 130, 195, 205, 246, 390, 410, 533, 615, 1066, 1230, 1291, 1599, 2582, 2665, 3198, 3873, 5330, 6455, 7746, 7995, 12910, 15990, 16783, 19365, 33566, 38730, 50349, 52931, 83915, 100698, 105862, 158793, 167830, 251745, 264655, 317586, 503490, 529310, 688103, 793965, 1376206, 1587930, 2064309, 3440515, 4128618, 6881030, 10321545, 20643090]

約数ペア:

[(1, 20643090), (2, 10321545), (3, 6881030), (5, 4128618), (6, 3440515), (10, 2064309), (13, 1587930), (15, 1376206), (26, 793965), (30, 688103), (39, 529310), (41, 503490), (65, 317586), (78, 264655), (82, 251745), (123, 167830), (130, 158793), (195, 105862), (205, 100698), (246, 83915), (390, 52931), (410, 50349), (533, 38730), (615, 33566), (1066, 19365), (1230, 16783), (1291, 15990), (1599, 12910), (2582, 7995), (2665, 7746), (3198, 6455), (3873, 5330)]