40279850

素因数分解:

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

素因数の和:2055

約数の個数: 48

約数和(自身を含む): 83328000

約数和(自身を除く): 43048150

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 1999, 2015, 3998, 4030, 9995, 10075, 19990, 20150, 25987, 49975, 51974, 61969, 99950, 123938, 129935, 259870, 309845, 619690, 649675, 805597, 1299350, 1549225, 1611194, 3098450, 4027985, 8055970, 20139925, 40279850]

約数ペア:

[(1, 40279850), (2, 20139925), (5, 8055970), (10, 4027985), (13, 3098450), (25, 1611194), (26, 1549225), (31, 1299350), (50, 805597), (62, 649675), (65, 619690), (130, 309845), (155, 259870), (310, 129935), (325, 123938), (403, 99950), (650, 61969), (775, 51974), (806, 49975), (1550, 25987), (1999, 20150), (2015, 19990), (3998, 10075), (4030, 9995)]