20782710

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 61931520

約数和(自身を除く): 41148810

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 31, 39, 45, 54, 62, 65, 78, 90, 93, 117, 130, 135, 155, 186, 191, 195, 234, 270, 279, 310, 351, 382, 390, 403, 465, 558, 573, 585, 702, 806, 837, 930, 955, 1146, 1170, 1209, 1395, 1674, 1719, 1755, 1910, 2015, 2418, 2483, 2790, 2865, 3438, 3510, 3627, 4030, 4185, 4966, 5157, 5730, 5921, 6045, 7254, 7449, 8370, 8595, 10314, 10881, 11842, 12090, 12415, 14898, 17190, 17763, 18135, 21762, 22347, 24830, 25785, 29605, 35526, 36270, 37245, 44694, 51570, 53289, 54405, 59210, 67041, 74490, 76973, 88815, 106578, 108810, 111735, 134082, 153946, 159867, 177630, 223470, 230919, 266445, 319734, 335205, 384865, 461838, 532890, 670410, 692757, 769730, 799335, 1154595, 1385514, 1598670, 2078271, 2309190, 3463785, 4156542, 6927570, 10391355, 20782710]

約数ペア:

[(1, 20782710), (2, 10391355), (3, 6927570), (5, 4156542), (6, 3463785), (9, 2309190), (10, 2078271), (13, 1598670), (15, 1385514), (18, 1154595), (26, 799335), (27, 769730), (30, 692757), (31, 670410), (39, 532890), (45, 461838), (54, 384865), (62, 335205), (65, 319734), (78, 266445), (90, 230919), (93, 223470), (117, 177630), (130, 159867), (135, 153946), (155, 134082), (186, 111735), (191, 108810), (195, 106578), (234, 88815), (270, 76973), (279, 74490), (310, 67041), (351, 59210), (382, 54405), (390, 53289), (403, 51570), (465, 44694), (558, 37245), (573, 36270), (585, 35526), (702, 29605), (806, 25785), (837, 24830), (930, 22347), (955, 21762), (1146, 18135), (1170, 17763), (1209, 17190), (1395, 14898), (1674, 12415), (1719, 12090), (1755, 11842), (1910, 10881), (2015, 10314), (2418, 8595), (2483, 8370), (2790, 7449), (2865, 7254), (3438, 6045), (3510, 5921), (3627, 5730), (4030, 5157), (4185, 4966)]