18281250

素因数分解:

$2^1\times 3^2\times 5^7\times {\mathrm{13}}^1$

素因数の和:56

約数の個数: 96

約数和(自身を含む): 53320176

約数和(自身を除く): 35038926

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 30, 39, 45, 50, 65, 75, 78, 90, 117, 125, 130, 150, 195, 225, 234, 250, 325, 375, 390, 450, 585, 625, 650, 750, 975, 1125, 1170, 1250, 1625, 1875, 1950, 2250, 2925, 3125, 3250, 3750, 4875, 5625, 5850, 6250, 8125, 9375, 9750, 11250, 14625, 15625, 16250, 18750, 24375, 28125, 29250, 31250, 40625, 46875, 48750, 56250, 73125, 78125, 81250, 93750, 121875, 140625, 146250, 156250, 203125, 234375, 243750, 281250, 365625, 406250, 468750, 609375, 703125, 731250, 1015625, 1218750, 1406250, 1828125, 2031250, 3046875, 3656250, 6093750, 9140625, 18281250]

約数ペア:

[(1, 18281250), (2, 9140625), (3, 6093750), (5, 3656250), (6, 3046875), (9, 2031250), (10, 1828125), (13, 1406250), (15, 1218750), (18, 1015625), (25, 731250), (26, 703125), (30, 609375), (39, 468750), (45, 406250), (50, 365625), (65, 281250), (75, 243750), (78, 234375), (90, 203125), (117, 156250), (125, 146250), (130, 140625), (150, 121875), (195, 93750), (225, 81250), (234, 78125), (250, 73125), (325, 56250), (375, 48750), (390, 46875), (450, 40625), (585, 31250), (625, 29250), (650, 28125), (750, 24375), (975, 18750), (1125, 16250), (1170, 15625), (1250, 14625), (1625, 11250), (1875, 9750), (1950, 9375), (2250, 8125), (2925, 6250), (3125, 5850), (3250, 5625), (3750, 4875)]