200728100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{887}}^1$

素因数の和:1005

約数の個数: 72

約数和(自身を含む): 456304128

約数和(自身を除く): 255576028

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 73, 100, 124, 146, 155, 292, 310, 365, 620, 730, 775, 887, 1460, 1550, 1774, 1825, 2263, 3100, 3548, 3650, 4435, 4526, 7300, 8870, 9052, 11315, 17740, 22175, 22630, 27497, 44350, 45260, 54994, 56575, 64751, 88700, 109988, 113150, 129502, 137485, 226300, 259004, 274970, 323755, 549940, 647510, 687425, 1295020, 1374850, 1618775, 2007281, 2749700, 3237550, 4014562, 6475100, 8029124, 10036405, 20072810, 40145620, 50182025, 100364050, 200728100]

約数ペア:

[(1, 200728100), (2, 100364050), (4, 50182025), (5, 40145620), (10, 20072810), (20, 10036405), (25, 8029124), (31, 6475100), (50, 4014562), (62, 3237550), (73, 2749700), (100, 2007281), (124, 1618775), (146, 1374850), (155, 1295020), (292, 687425), (310, 647510), (365, 549940), (620, 323755), (730, 274970), (775, 259004), (887, 226300), (1460, 137485), (1550, 129502), (1774, 113150), (1825, 109988), (2263, 88700), (3100, 64751), (3548, 56575), (3650, 54994), (4435, 45260), (4526, 44350), (7300, 27497), (8870, 22630), (9052, 22175), (11315, 17740)]