201399250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2060

約数の個数: 64

約数和(自身を含む): 419328000

約数和(自身を除く): 217928750

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 125, 130, 155, 250, 310, 325, 403, 650, 775, 806, 1550, 1625, 1999, 2015, 3250, 3875, 3998, 4030, 7750, 9995, 10075, 19990, 20150, 25987, 49975, 50375, 51974, 61969, 99950, 100750, 123938, 129935, 249875, 259870, 309845, 499750, 619690, 649675, 805597, 1299350, 1549225, 1611194, 3098450, 3248375, 4027985, 6496750, 7746125, 8055970, 15492250, 20139925, 40279850, 100699625, 201399250]

約数ペア:

[(1, 201399250), (2, 100699625), (5, 40279850), (10, 20139925), (13, 15492250), (25, 8055970), (26, 7746125), (31, 6496750), (50, 4027985), (62, 3248375), (65, 3098450), (125, 1611194), (130, 1549225), (155, 1299350), (250, 805597), (310, 649675), (325, 619690), (403, 499750), (650, 309845), (775, 259870), (806, 249875), (1550, 129935), (1625, 123938), (1999, 100750), (2015, 99950), (3250, 61969), (3875, 51974), (3998, 50375), (4030, 49975), (7750, 25987), (9995, 20150), (10075, 19990)]