193990020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{65983}}^1$

素因数の和:66009

約数の個数: 72

約数和(自身を含む): 631862784

約数和(自身を除く): 437872764

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, 65983, 131966, 197949, 263932, 329915, 395898, 461881, 659830, 791796, 923762, 989745, 1319660, 1385643, 1847524, 1979490, 2309405, 2771286, 3233167, 3958980, 4618810, 5542572, 6466334, 6928215, 9237620, 9699501, 12932668, 13856430, 16165835, 19399002, 27712860, 32331670, 38798004, 48497505, 64663340, 96995010, 193990020]

約数ペア:

[(1, 193990020), (2, 96995010), (3, 64663340), (4, 48497505), (5, 38798004), (6, 32331670), (7, 27712860), (10, 19399002), (12, 16165835), (14, 13856430), (15, 12932668), (20, 9699501), (21, 9237620), (28, 6928215), (30, 6466334), (35, 5542572), (42, 4618810), (49, 3958980), (60, 3233167), (70, 2771286), (84, 2309405), (98, 1979490), (105, 1847524), (140, 1385643), (147, 1319660), (196, 989745), (210, 923762), (245, 791796), (294, 659830), (420, 461881), (490, 395898), (588, 329915), (735, 263932), (980, 197949), (1470, 131966), (2940, 65983)]