21391200

素因数分解:

$2^5\times 3^2\times 5^2\times {\mathrm{2971}}^1$

素因数の和:2997

約数の個数: 108

約数和(自身を含む): 75456108

約数和(自身を除く): 54064908

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 96, 100, 120, 144, 150, 160, 180, 200, 225, 240, 288, 300, 360, 400, 450, 480, 600, 720, 800, 900, 1200, 1440, 1800, 2400, 2971, 3600, 5942, 7200, 8913, 11884, 14855, 17826, 23768, 26739, 29710, 35652, 44565, 47536, 53478, 59420, 71304, 74275, 89130, 95072, 106956, 118840, 133695, 142608, 148550, 178260, 213912, 222825, 237680, 267390, 285216, 297100, 356520, 427824, 445650, 475360, 534780, 594200, 668475, 713040, 855648, 891300, 1069560, 1188400, 1336950, 1426080, 1782600, 2139120, 2376800, 2673900, 3565200, 4278240, 5347800, 7130400, 10695600, 21391200]

約数ペア:

[(1, 21391200), (2, 10695600), (3, 7130400), (4, 5347800), (5, 4278240), (6, 3565200), (8, 2673900), (9, 2376800), (10, 2139120), (12, 1782600), (15, 1426080), (16, 1336950), (18, 1188400), (20, 1069560), (24, 891300), (25, 855648), (30, 713040), (32, 668475), (36, 594200), (40, 534780), (45, 475360), (48, 445650), (50, 427824), (60, 356520), (72, 297100), (75, 285216), (80, 267390), (90, 237680), (96, 222825), (100, 213912), (120, 178260), (144, 148550), (150, 142608), (160, 133695), (180, 118840), (200, 106956), (225, 95072), (240, 89130), (288, 74275), (300, 71304), (360, 59420), (400, 53478), (450, 47536), (480, 44565), (600, 35652), (720, 29710), (800, 26739), (900, 23768), (1200, 17826), (1440, 14855), (1800, 11884), (2400, 8913), (2971, 7200), (3600, 5942)]