20304830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:501

約数の個数: 64

約数和(自身を含む): 45940608

約数和(自身を除く): 25635778

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 53, 65, 70, 91, 106, 130, 182, 265, 371, 421, 455, 530, 689, 742, 842, 910, 1378, 1855, 2105, 2947, 3445, 3710, 4210, 4823, 5473, 5894, 6890, 9646, 10946, 14735, 22313, 24115, 27365, 29470, 38311, 44626, 48230, 54730, 76622, 111565, 156191, 191555, 223130, 290069, 312382, 383110, 580138, 780955, 1450345, 1561910, 2030483, 2900690, 4060966, 10152415, 20304830]

約数ペア:

[(1, 20304830), (2, 10152415), (5, 4060966), (7, 2900690), (10, 2030483), (13, 1561910), (14, 1450345), (26, 780955), (35, 580138), (53, 383110), (65, 312382), (70, 290069), (91, 223130), (106, 191555), (130, 156191), (182, 111565), (265, 76622), (371, 54730), (421, 48230), (455, 44626), (530, 38311), (689, 29470), (742, 27365), (842, 24115), (910, 22313), (1378, 14735), (1855, 10946), (2105, 9646), (2947, 6890), (3445, 5894), (3710, 5473), (4210, 4823)]