21937500

素因数分解:

$2^2\times 3^3\times 5^6\times {\mathrm{13}}^1$

素因数の和:56

約数の個数: 168

約数和(自身を含む): 76561520

約数和(自身を除く): 54624020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 27, 30, 36, 39, 45, 50, 52, 54, 60, 65, 75, 78, 90, 100, 108, 117, 125, 130, 135, 150, 156, 180, 195, 225, 234, 250, 260, 270, 300, 325, 351, 375, 390, 450, 468, 500, 540, 585, 625, 650, 675, 702, 750, 780, 900, 975, 1125, 1170, 1250, 1300, 1350, 1404, 1500, 1625, 1755, 1875, 1950, 2250, 2340, 2500, 2700, 2925, 3125, 3250, 3375, 3510, 3750, 3900, 4500, 4875, 5625, 5850, 6250, 6500, 6750, 7020, 7500, 8125, 8775, 9375, 9750, 11250, 11700, 12500, 13500, 14625, 15625, 16250, 16875, 17550, 18750, 19500, 22500, 24375, 28125, 29250, 31250, 32500, 33750, 35100, 37500, 40625, 43875, 46875, 48750, 56250, 58500, 62500, 67500, 73125, 81250, 84375, 87750, 93750, 97500, 112500, 121875, 140625, 146250, 162500, 168750, 175500, 187500, 203125, 219375, 243750, 281250, 292500, 337500, 365625, 406250, 421875, 438750, 487500, 562500, 609375, 731250, 812500, 843750, 877500, 1096875, 1218750, 1462500, 1687500, 1828125, 2193750, 2437500, 3656250, 4387500, 5484375, 7312500, 10968750, 21937500]

約数ペア:

[(1, 21937500), (2, 10968750), (3, 7312500), (4, 5484375), (5, 4387500), (6, 3656250), (9, 2437500), (10, 2193750), (12, 1828125), (13, 1687500), (15, 1462500), (18, 1218750), (20, 1096875), (25, 877500), (26, 843750), (27, 812500), (30, 731250), (36, 609375), (39, 562500), (45, 487500), (50, 438750), (52, 421875), (54, 406250), (60, 365625), (65, 337500), (75, 292500), (78, 281250), (90, 243750), (100, 219375), (108, 203125), (117, 187500), (125, 175500), (130, 168750), (135, 162500), (150, 146250), (156, 140625), (180, 121875), (195, 112500), (225, 97500), (234, 93750), (250, 87750), (260, 84375), (270, 81250), (300, 73125), (325, 67500), (351, 62500), (375, 58500), (390, 56250), (450, 48750), (468, 46875), (500, 43875), (540, 40625), (585, 37500), (625, 35100), (650, 33750), (675, 32500), (702, 31250), (750, 29250), (780, 28125), (900, 24375), (975, 22500), (1125, 19500), (1170, 18750), (1250, 17550), (1300, 16875), (1350, 16250), (1404, 15625), (1500, 14625), (1625, 13500), (1755, 12500), (1875, 11700), (1950, 11250), (2250, 9750), (2340, 9375), (2500, 8775), (2700, 8125), (2925, 7500), (3125, 7020), (3250, 6750), (3375, 6500), (3510, 6250), (3750, 5850), (3900, 5625), (4500, 4875)]