28021500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:517

約数の個数: 144

約数和(自身を含む): 95397120

約数和(自身を除く): 67375620

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, 375, 390, 450, 468, 479, 500, 585, 650, 750, 780, 900, 958, 975, 1125, 1170, 1300, 1437, 1500, 1625, 1916, 1950, 2250, 2340, 2395, 2874, 2925, 3250, 3900, 4311, 4500, 4790, 4875, 5748, 5850, 6227, 6500, 7185, 8622, 9580, 9750, 11700, 11975, 12454, 14370, 14625, 17244, 18681, 19500, 21555, 23950, 24908, 28740, 29250, 31135, 35925, 37362, 43110, 47900, 56043, 58500, 59875, 62270, 71850, 74724, 86220, 93405, 107775, 112086, 119750, 124540, 143700, 155675, 179625, 186810, 215550, 224172, 239500, 280215, 311350, 359250, 373620, 431100, 467025, 538875, 560430, 622700, 718500, 778375, 934050, 1077750, 1120860, 1401075, 1556750, 1868100, 2155500, 2335125, 2802150, 3113500, 4670250, 5604300, 7005375, 9340500, 14010750, 28021500]

約数ペア:

[(1, 28021500), (2, 14010750), (3, 9340500), (4, 7005375), (5, 5604300), (6, 4670250), (9, 3113500), (10, 2802150), (12, 2335125), (13, 2155500), (15, 1868100), (18, 1556750), (20, 1401075), (25, 1120860), (26, 1077750), (30, 934050), (36, 778375), (39, 718500), (45, 622700), (50, 560430), (52, 538875), (60, 467025), (65, 431100), (75, 373620), (78, 359250), (90, 311350), (100, 280215), (117, 239500), (125, 224172), (130, 215550), (150, 186810), (156, 179625), (180, 155675), (195, 143700), (225, 124540), (234, 119750), (250, 112086), (260, 107775), (300, 93405), (325, 86220), (375, 74724), (390, 71850), (450, 62270), (468, 59875), (479, 58500), (500, 56043), (585, 47900), (650, 43110), (750, 37362), (780, 35925), (900, 31135), (958, 29250), (975, 28740), (1125, 24908), (1170, 23950), (1300, 21555), (1437, 19500), (1500, 18681), (1625, 17244), (1916, 14625), (1950, 14370), (2250, 12454), (2340, 11975), (2395, 11700), (2874, 9750), (2925, 9580), (3250, 8622), (3900, 7185), (4311, 6500), (4500, 6227), (4790, 5850), (4875, 5748)]