57280020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19483}}^1$

素因数の和:19509

約数の個数: 72

約数和(自身を含む): 186578784

約数和(自身を除く): 129298764

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 19483, 38966, 58449, 77932, 97415, 116898, 136381, 194830, 233796, 272762, 292245, 389660, 409143, 545524, 584490, 681905, 818286, 954667, 1168980, 1363810, 1636572, 1909334, 2045715, 2727620, 2864001, 3818668, 4091430, 4773335, 5728002, 8182860, 9546670, 11456004, 14320005, 19093340, 28640010, 57280020]

約数ペア:

[(1, 57280020), (2, 28640010), (3, 19093340), (4, 14320005), (5, 11456004), (6, 9546670), (7, 8182860), (10, 5728002), (12, 4773335), (14, 4091430), (15, 3818668), (20, 2864001), (21, 2727620), (28, 2045715), (30, 1909334), (35, 1636572), (42, 1363810), (49, 1168980), (60, 954667), (70, 818286), (84, 681905), (98, 584490), (105, 545524), (140, 409143), (147, 389660), (196, 292245), (210, 272762), (245, 233796), (294, 194830), (420, 136381), (490, 116898), (588, 97415), (735, 77932), (980, 58449), (1470, 38966), (2940, 19483)]