29820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1$

素因数の和:90

約数の個数: 48

約数和(自身を含む): 96768

約数和(自身を除く): 66948

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 71, 84, 105, 140, 142, 210, 213, 284, 355, 420, 426, 497, 710, 852, 994, 1065, 1420, 1491, 1988, 2130, 2485, 2982, 4260, 4970, 5964, 7455, 9940, 14910, 29820]

約数ペア:

[(1, 29820), (2, 14910), (3, 9940), (4, 7455), (5, 5964), (6, 4970), (7, 4260), (10, 2982), (12, 2485), (14, 2130), (15, 1988), (20, 1491), (21, 1420), (28, 1065), (30, 994), (35, 852), (42, 710), (60, 497), (70, 426), (71, 420), (84, 355), (105, 284), (140, 213), (142, 210)]