18947500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1$

素因数の和:101

約数の個数: 120

約数和(自身を含む): 49596624

約数和(自身を除く): 30649124

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 53, 55, 65, 100, 106, 110, 125, 130, 143, 212, 220, 250, 260, 265, 275, 286, 325, 500, 530, 550, 572, 583, 625, 650, 689, 715, 1060, 1100, 1166, 1250, 1300, 1325, 1375, 1378, 1430, 1625, 2332, 2500, 2650, 2750, 2756, 2860, 2915, 3250, 3445, 3575, 5300, 5500, 5830, 6500, 6625, 6875, 6890, 7150, 7579, 8125, 11660, 13250, 13750, 13780, 14300, 14575, 15158, 16250, 17225, 17875, 26500, 27500, 29150, 30316, 32500, 33125, 34450, 35750, 37895, 58300, 66250, 68900, 71500, 72875, 75790, 86125, 89375, 132500, 145750, 151580, 172250, 178750, 189475, 291500, 344500, 357500, 364375, 378950, 430625, 728750, 757900, 861250, 947375, 1457500, 1722500, 1894750, 3789500, 4736875, 9473750, 18947500]

約数ペア:

[(1, 18947500), (2, 9473750), (4, 4736875), (5, 3789500), (10, 1894750), (11, 1722500), (13, 1457500), (20, 947375), (22, 861250), (25, 757900), (26, 728750), (44, 430625), (50, 378950), (52, 364375), (53, 357500), (55, 344500), (65, 291500), (100, 189475), (106, 178750), (110, 172250), (125, 151580), (130, 145750), (143, 132500), (212, 89375), (220, 86125), (250, 75790), (260, 72875), (265, 71500), (275, 68900), (286, 66250), (325, 58300), (500, 37895), (530, 35750), (550, 34450), (572, 33125), (583, 32500), (625, 30316), (650, 29150), (689, 27500), (715, 26500), (1060, 17875), (1100, 17225), (1166, 16250), (1250, 15158), (1300, 14575), (1325, 14300), (1375, 13780), (1378, 13750), (1430, 13250), (1625, 11660), (2332, 8125), (2500, 7579), (2650, 7150), (2750, 6890), (2756, 6875), (2860, 6625), (2915, 6500), (3250, 5830), (3445, 5500), (3575, 5300)]