21450600

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{701}}^1$

素因数の和:740

約数の個数: 144

約数和(自身を含む): 76384620

約数和(自身を除く): 54934020

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 25, 30, 34, 36, 40, 45, 50, 51, 60, 68, 72, 75, 85, 90, 100, 102, 120, 136, 150, 153, 170, 180, 200, 204, 225, 255, 300, 306, 340, 360, 408, 425, 450, 510, 600, 612, 680, 701, 765, 850, 900, 1020, 1224, 1275, 1402, 1530, 1700, 1800, 2040, 2103, 2550, 2804, 3060, 3400, 3505, 3825, 4206, 5100, 5608, 6120, 6309, 7010, 7650, 8412, 10200, 10515, 11917, 12618, 14020, 15300, 16824, 17525, 21030, 23834, 25236, 28040, 30600, 31545, 35050, 35751, 42060, 47668, 50472, 52575, 59585, 63090, 70100, 71502, 84120, 95336, 105150, 107253, 119170, 126180, 140200, 143004, 157725, 178755, 210300, 214506, 238340, 252360, 286008, 297925, 315450, 357510, 420600, 429012, 476680, 536265, 595850, 630900, 715020, 858024, 893775, 1072530, 1191700, 1261800, 1430040, 1787550, 2145060, 2383400, 2681325, 3575100, 4290120, 5362650, 7150200, 10725300, 21450600]

約数ペア:

[(1, 21450600), (2, 10725300), (3, 7150200), (4, 5362650), (5, 4290120), (6, 3575100), (8, 2681325), (9, 2383400), (10, 2145060), (12, 1787550), (15, 1430040), (17, 1261800), (18, 1191700), (20, 1072530), (24, 893775), (25, 858024), (30, 715020), (34, 630900), (36, 595850), (40, 536265), (45, 476680), (50, 429012), (51, 420600), (60, 357510), (68, 315450), (72, 297925), (75, 286008), (85, 252360), (90, 238340), (100, 214506), (102, 210300), (120, 178755), (136, 157725), (150, 143004), (153, 140200), (170, 126180), (180, 119170), (200, 107253), (204, 105150), (225, 95336), (255, 84120), (300, 71502), (306, 70100), (340, 63090), (360, 59585), (408, 52575), (425, 50472), (450, 47668), (510, 42060), (600, 35751), (612, 35050), (680, 31545), (701, 30600), (765, 28040), (850, 25236), (900, 23834), (1020, 21030), (1224, 17525), (1275, 16824), (1402, 15300), (1530, 14020), (1700, 12618), (1800, 11917), (2040, 10515), (2103, 10200), (2550, 8412), (2804, 7650), (3060, 7010), (3400, 6309), (3505, 6120), (3825, 5608), (4206, 5100)]