20508810

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1601}}^1$

素因数の和:1679

約数の個数: 64

約数和(自身を含む): 57210624

約数和(自身を除く): 36701814

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 61, 70, 105, 122, 183, 210, 305, 366, 427, 610, 854, 915, 1281, 1601, 1830, 2135, 2562, 3202, 4270, 4803, 6405, 8005, 9606, 11207, 12810, 16010, 22414, 24015, 33621, 48030, 56035, 67242, 97661, 112070, 168105, 195322, 292983, 336210, 488305, 585966, 683627, 976610, 1367254, 1464915, 2050881, 2929830, 3418135, 4101762, 6836270, 10254405, 20508810]

約数ペア:

[(1, 20508810), (2, 10254405), (3, 6836270), (5, 4101762), (6, 3418135), (7, 2929830), (10, 2050881), (14, 1464915), (15, 1367254), (21, 976610), (30, 683627), (35, 585966), (42, 488305), (61, 336210), (70, 292983), (105, 195322), (122, 168105), (183, 112070), (210, 97661), (305, 67242), (366, 56035), (427, 48030), (610, 33621), (854, 24015), (915, 22414), (1281, 16010), (1601, 12810), (1830, 11207), (2135, 9606), (2562, 8005), (3202, 6405), (4270, 4803)]