20853750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:175

約数の個数: 80

約数和(自身を含む): 53532864

約数和(自身を除く): 32679114

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 67, 75, 83, 125, 134, 150, 166, 201, 249, 250, 335, 375, 402, 415, 498, 625, 670, 750, 830, 1005, 1245, 1250, 1675, 1875, 2010, 2075, 2490, 3350, 3750, 4150, 5025, 5561, 6225, 8375, 10050, 10375, 11122, 12450, 16683, 16750, 20750, 25125, 27805, 31125, 33366, 41875, 50250, 51875, 55610, 62250, 83415, 83750, 103750, 125625, 139025, 155625, 166830, 251250, 278050, 311250, 417075, 695125, 834150, 1390250, 2085375, 3475625, 4170750, 6951250, 10426875, 20853750]

約数ペア:

[(1, 20853750), (2, 10426875), (3, 6951250), (5, 4170750), (6, 3475625), (10, 2085375), (15, 1390250), (25, 834150), (30, 695125), (50, 417075), (67, 311250), (75, 278050), (83, 251250), (125, 166830), (134, 155625), (150, 139025), (166, 125625), (201, 103750), (249, 83750), (250, 83415), (335, 62250), (375, 55610), (402, 51875), (415, 50250), (498, 41875), (625, 33366), (670, 31125), (750, 27805), (830, 25125), (1005, 20750), (1245, 16750), (1250, 16683), (1675, 12450), (1875, 11122), (2010, 10375), (2075, 10050), (2490, 8375), (3350, 6225), (3750, 5561), (4150, 5025)]