399461940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{829}}^1\times {\mathrm{2677}}^1$

素因数の和:3521

約数の個数: 72

約数和(自身を含む): 1213616040

約数和(自身を除く): 814154100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 829, 1658, 2487, 2677, 3316, 4145, 4974, 5354, 7461, 8031, 8290, 9948, 10708, 12435, 13385, 14922, 16062, 16580, 24093, 24870, 26770, 29844, 32124, 37305, 40155, 48186, 49740, 53540, 74610, 80310, 96372, 120465, 149220, 160620, 240930, 481860, 2219233, 4438466, 6657699, 8876932, 11096165, 13315398, 19973097, 22192330, 26630796, 33288495, 39946194, 44384660, 66576990, 79892388, 99865485, 133153980, 199730970, 399461940]

約数ペア:

[(1, 399461940), (2, 199730970), (3, 133153980), (4, 99865485), (5, 79892388), (6, 66576990), (9, 44384660), (10, 39946194), (12, 33288495), (15, 26630796), (18, 22192330), (20, 19973097), (30, 13315398), (36, 11096165), (45, 8876932), (60, 6657699), (90, 4438466), (180, 2219233), (829, 481860), (1658, 240930), (2487, 160620), (2677, 149220), (3316, 120465), (4145, 96372), (4974, 80310), (5354, 74610), (7461, 53540), (8031, 49740), (8290, 48186), (9948, 40155), (10708, 37305), (12435, 32124), (13385, 29844), (14922, 26770), (16062, 24870), (16580, 24093)]