209213340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{71161}}^1$

素因数の和:71187

約数の個数: 72

約数和(自身を含む): 681447312

約数和(自身を除く): 472233972

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, 71161, 142322, 213483, 284644, 355805, 426966, 498127, 711610, 853932, 996254, 1067415, 1423220, 1494381, 1992508, 2134830, 2490635, 2988762, 3486889, 4269660, 4981270, 5977524, 6973778, 7471905, 9962540, 10460667, 13947556, 14943810, 17434445, 20921334, 29887620, 34868890, 41842668, 52303335, 69737780, 104606670, 209213340]

約数ペア:

[(1, 209213340), (2, 104606670), (3, 69737780), (4, 52303335), (5, 41842668), (6, 34868890), (7, 29887620), (10, 20921334), (12, 17434445), (14, 14943810), (15, 13947556), (20, 10460667), (21, 9962540), (28, 7471905), (30, 6973778), (35, 5977524), (42, 4981270), (49, 4269660), (60, 3486889), (70, 2988762), (84, 2490635), (98, 2134830), (105, 1992508), (140, 1494381), (147, 1423220), (196, 1067415), (210, 996254), (245, 853932), (294, 711610), (420, 498127), (490, 426966), (588, 355805), (735, 284644), (980, 213483), (1470, 142322), (2940, 71161)]