399750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1$

素因数の和:74

約数の個数: 64

約数和(自身を含む): 1100736

約数和(自身を除く): 700986

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 41, 50, 65, 75, 78, 82, 123, 125, 130, 150, 195, 205, 246, 250, 325, 375, 390, 410, 533, 615, 650, 750, 975, 1025, 1066, 1230, 1599, 1625, 1950, 2050, 2665, 3075, 3198, 3250, 4875, 5125, 5330, 6150, 7995, 9750, 10250, 13325, 15375, 15990, 26650, 30750, 39975, 66625, 79950, 133250, 199875, 399750]

約数ペア:

[(1, 399750), (2, 199875), (3, 133250), (5, 79950), (6, 66625), (10, 39975), (13, 30750), (15, 26650), (25, 15990), (26, 15375), (30, 13325), (39, 10250), (41, 9750), (50, 7995), (65, 6150), (75, 5330), (78, 5125), (82, 4875), (123, 3250), (125, 3198), (130, 3075), (150, 2665), (195, 2050), (205, 1950), (246, 1625), (250, 1599), (325, 1230), (375, 1066), (390, 1025), (410, 975), (533, 750), (615, 650)]