68790420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{829}}^1$

素因数の和:1305

約数の個数: 72

約数和(自身を含む): 209369160

約数和(自身を除く): 140578740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 461, 829, 922, 1383, 1658, 1844, 2305, 2487, 2766, 3316, 4145, 4149, 4610, 4974, 5532, 6915, 7461, 8290, 8298, 9220, 9948, 12435, 13830, 14922, 16580, 16596, 20745, 24870, 27660, 29844, 37305, 41490, 49740, 74610, 82980, 149220, 382169, 764338, 1146507, 1528676, 1910845, 2293014, 3439521, 3821690, 4586028, 5732535, 6879042, 7643380, 11465070, 13758084, 17197605, 22930140, 34395210, 68790420]

約数ペア:

[(1, 68790420), (2, 34395210), (3, 22930140), (4, 17197605), (5, 13758084), (6, 11465070), (9, 7643380), (10, 6879042), (12, 5732535), (15, 4586028), (18, 3821690), (20, 3439521), (30, 2293014), (36, 1910845), (45, 1528676), (60, 1146507), (90, 764338), (180, 382169), (461, 149220), (829, 82980), (922, 74610), (1383, 49740), (1658, 41490), (1844, 37305), (2305, 29844), (2487, 27660), (2766, 24870), (3316, 20745), (4145, 16596), (4149, 16580), (4610, 14922), (4974, 13830), (5532, 12435), (6915, 9948), (7461, 9220), (8290, 8298)]