20489664

素因数分解:

$2^6\times 3^1\times {\mathrm{13}}^1\times {\mathrm{8209}}^1$

素因数の和:8237

約数の個数: 56

約数和(自身を含む): 58389520

約数和(自身を除く): 37899856

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 156, 192, 208, 312, 416, 624, 832, 1248, 2496, 8209, 16418, 24627, 32836, 49254, 65672, 98508, 106717, 131344, 197016, 213434, 262688, 320151, 394032, 426868, 525376, 640302, 788064, 853736, 1280604, 1576128, 1707472, 2561208, 3414944, 5122416, 6829888, 10244832, 20489664]

約数ペア:

[(1, 20489664), (2, 10244832), (3, 6829888), (4, 5122416), (6, 3414944), (8, 2561208), (12, 1707472), (13, 1576128), (16, 1280604), (24, 853736), (26, 788064), (32, 640302), (39, 525376), (48, 426868), (52, 394032), (64, 320151), (78, 262688), (96, 213434), (104, 197016), (156, 131344), (192, 106717), (208, 98508), (312, 65672), (416, 49254), (624, 32836), (832, 24627), (1248, 16418), (2496, 8209)]