20171728210

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{523}}^1\times {\mathrm{1499}}^1$

素因数の和:2143

約数の個数: 64

約数和(自身を含む): 38029824000

約数和(自身を除く): 17858095790

約数列:

[1, 2, 5, 10, 31, 62, 83, 155, 166, 310, 415, 523, 830, 1046, 1499, 2573, 2615, 2998, 5146, 5230, 7495, 12865, 14990, 16213, 25730, 32426, 43409, 46469, 81065, 86818, 92938, 124417, 162130, 217045, 232345, 248834, 434090, 464690, 622085, 783977, 1244170, 1345679, 1567954, 2691358, 3856927, 3919885, 6728395, 7713854, 7839770, 13456790, 19284635, 24303287, 38569270, 48606574, 65070091, 121516435, 130140182, 243032870, 325350455, 650700910, 2017172821, 4034345642, 10085864105, 20171728210]

約数ペア:

[(1, 20171728210), (2, 10085864105), (5, 4034345642), (10, 2017172821), (31, 650700910), (62, 325350455), (83, 243032870), (155, 130140182), (166, 121516435), (310, 65070091), (415, 48606574), (523, 38569270), (830, 24303287), (1046, 19284635), (1499, 13456790), (2573, 7839770), (2615, 7713854), (2998, 6728395), (5146, 3919885), (5230, 3856927), (7495, 2691358), (12865, 1567954), (14990, 1345679), (16213, 1244170), (25730, 783977), (32426, 622085), (43409, 464690), (46469, 434090), (81065, 248834), (86818, 232345), (92938, 217045), (124417, 162130)]