20517750

素因数分解:

$2^1\times 3^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{829}}^1$

素因数の和:863

約数の個数: 96

約数和(自身を含む): 60596640

約数和(自身を除く): 40078890

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 30, 33, 45, 50, 55, 66, 75, 90, 99, 110, 125, 150, 165, 198, 225, 250, 275, 330, 375, 450, 495, 550, 750, 825, 829, 990, 1125, 1375, 1650, 1658, 2250, 2475, 2487, 2750, 4125, 4145, 4950, 4974, 7461, 8250, 8290, 9119, 12375, 12435, 14922, 18238, 20725, 24750, 24870, 27357, 37305, 41450, 45595, 54714, 62175, 74610, 82071, 91190, 103625, 124350, 136785, 164142, 186525, 207250, 227975, 273570, 310875, 373050, 410355, 455950, 621750, 683925, 820710, 932625, 1139875, 1367850, 1865250, 2051775, 2279750, 3419625, 4103550, 6839250, 10258875, 20517750]

約数ペア:

[(1, 20517750), (2, 10258875), (3, 6839250), (5, 4103550), (6, 3419625), (9, 2279750), (10, 2051775), (11, 1865250), (15, 1367850), (18, 1139875), (22, 932625), (25, 820710), (30, 683925), (33, 621750), (45, 455950), (50, 410355), (55, 373050), (66, 310875), (75, 273570), (90, 227975), (99, 207250), (110, 186525), (125, 164142), (150, 136785), (165, 124350), (198, 103625), (225, 91190), (250, 82071), (275, 74610), (330, 62175), (375, 54714), (450, 45595), (495, 41450), (550, 37305), (750, 27357), (825, 24870), (829, 24750), (990, 20725), (1125, 18238), (1375, 14922), (1650, 12435), (1658, 12375), (2250, 9119), (2475, 8290), (2487, 8250), (2750, 7461), (4125, 4974), (4145, 4950)]