2019947900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{269}}^1\times {\mathrm{1231}}^1$

素因数の和:1575

約数の個数: 72

約数和(自身を含む): 4475338560

約数和(自身を除く): 2455390660

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 269, 305, 538, 610, 1076, 1220, 1231, 1345, 1525, 2462, 2690, 3050, 4924, 5380, 6100, 6155, 6725, 12310, 13450, 16409, 24620, 26900, 30775, 32818, 61550, 65636, 75091, 82045, 123100, 150182, 164090, 300364, 328180, 331139, 375455, 410225, 662278, 750910, 820450, 1324556, 1501820, 1640900, 1655695, 1877275, 3311390, 3754550, 6622780, 7509100, 8278475, 16556950, 20199479, 33113900, 40398958, 80797916, 100997395, 201994790, 403989580, 504986975, 1009973950, 2019947900]

約数ペア:

[(1, 2019947900), (2, 1009973950), (4, 504986975), (5, 403989580), (10, 201994790), (20, 100997395), (25, 80797916), (50, 40398958), (61, 33113900), (100, 20199479), (122, 16556950), (244, 8278475), (269, 7509100), (305, 6622780), (538, 3754550), (610, 3311390), (1076, 1877275), (1220, 1655695), (1231, 1640900), (1345, 1501820), (1525, 1324556), (2462, 820450), (2690, 750910), (3050, 662278), (4924, 410225), (5380, 375455), (6100, 331139), (6155, 328180), (6725, 300364), (12310, 164090), (13450, 150182), (16409, 123100), (24620, 82045), (26900, 75091), (30775, 65636), (32818, 61550)]