209849250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{21523}}^1$

素因数の和:21556

約数の個数: 64

約数和(自身を含む): 564100992

約数和(自身を除く): 354251742

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 125, 130, 150, 195, 250, 325, 375, 390, 650, 750, 975, 1625, 1950, 3250, 4875, 9750, 21523, 43046, 64569, 107615, 129138, 215230, 279799, 322845, 538075, 559598, 645690, 839397, 1076150, 1398995, 1614225, 1678794, 2690375, 2797990, 3228450, 4196985, 5380750, 6994975, 8071125, 8393970, 13989950, 16142250, 20984925, 34974875, 41969850, 69949750, 104924625, 209849250]

約数ペア:

[(1, 209849250), (2, 104924625), (3, 69949750), (5, 41969850), (6, 34974875), (10, 20984925), (13, 16142250), (15, 13989950), (25, 8393970), (26, 8071125), (30, 6994975), (39, 5380750), (50, 4196985), (65, 3228450), (75, 2797990), (78, 2690375), (125, 1678794), (130, 1614225), (150, 1398995), (195, 1076150), (250, 839397), (325, 645690), (375, 559598), (390, 538075), (650, 322845), (750, 279799), (975, 215230), (1625, 129138), (1950, 107615), (3250, 64569), (4875, 43046), (9750, 21523)]