21820500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{373}}^1$

素因数の和:411

約数の個数: 144

約数和(自身を含む): 74330256

約数和(自身を除く): 52509756

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 30, 36, 39, 45, 50, 52, 60, 65, 75, 78, 90, 100, 117, 125, 130, 150, 156, 180, 195, 225, 234, 250, 260, 300, 325, 373, 375, 390, 450, 468, 500, 585, 650, 746, 750, 780, 900, 975, 1119, 1125, 1170, 1300, 1492, 1500, 1625, 1865, 1950, 2238, 2250, 2340, 2925, 3250, 3357, 3730, 3900, 4476, 4500, 4849, 4875, 5595, 5850, 6500, 6714, 7460, 9325, 9698, 9750, 11190, 11700, 13428, 14547, 14625, 16785, 18650, 19396, 19500, 22380, 24245, 27975, 29094, 29250, 33570, 37300, 43641, 46625, 48490, 55950, 58188, 58500, 67140, 72735, 83925, 87282, 93250, 96980, 111900, 121225, 139875, 145470, 167850, 174564, 186500, 218205, 242450, 279750, 290940, 335700, 363675, 419625, 436410, 484900, 559500, 606125, 727350, 839250, 872820, 1091025, 1212250, 1454700, 1678500, 1818375, 2182050, 2424500, 3636750, 4364100, 5455125, 7273500, 10910250, 21820500]

約数ペア:

[(1, 21820500), (2, 10910250), (3, 7273500), (4, 5455125), (5, 4364100), (6, 3636750), (9, 2424500), (10, 2182050), (12, 1818375), (13, 1678500), (15, 1454700), (18, 1212250), (20, 1091025), (25, 872820), (26, 839250), (30, 727350), (36, 606125), (39, 559500), (45, 484900), (50, 436410), (52, 419625), (60, 363675), (65, 335700), (75, 290940), (78, 279750), (90, 242450), (100, 218205), (117, 186500), (125, 174564), (130, 167850), (150, 145470), (156, 139875), (180, 121225), (195, 111900), (225, 96980), (234, 93250), (250, 87282), (260, 83925), (300, 72735), (325, 67140), (373, 58500), (375, 58188), (390, 55950), (450, 48490), (468, 46625), (500, 43641), (585, 37300), (650, 33570), (746, 29250), (750, 29094), (780, 27975), (900, 24245), (975, 22380), (1119, 19500), (1125, 19396), (1170, 18650), (1300, 16785), (1492, 14625), (1500, 14547), (1625, 13428), (1865, 11700), (1950, 11190), (2238, 9750), (2250, 9698), (2340, 9325), (2925, 7460), (3250, 6714), (3357, 6500), (3730, 5850), (3900, 5595), (4476, 4875), (4500, 4849)]