21940560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{983}}^1$

素因数の和:1033

約数の個数: 120

約数和(自身を含む): 76137984

約数和(自身を除く): 54197424

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 496, 558, 620, 720, 744, 930, 983, 1116, 1240, 1395, 1488, 1860, 1966, 2232, 2480, 2790, 2949, 3720, 3932, 4464, 4915, 5580, 5898, 7440, 7864, 8847, 9830, 11160, 11796, 14745, 15728, 17694, 19660, 22320, 23592, 29490, 30473, 35388, 39320, 44235, 47184, 58980, 60946, 70776, 78640, 88470, 91419, 117960, 121892, 141552, 152365, 176940, 182838, 235920, 243784, 274257, 304730, 353880, 365676, 457095, 487568, 548514, 609460, 707760, 731352, 914190, 1097028, 1218920, 1371285, 1462704, 1828380, 2194056, 2437840, 2742570, 3656760, 4388112, 5485140, 7313520, 10970280, 21940560]

約数ペア:

[(1, 21940560), (2, 10970280), (3, 7313520), (4, 5485140), (5, 4388112), (6, 3656760), (8, 2742570), (9, 2437840), (10, 2194056), (12, 1828380), (15, 1462704), (16, 1371285), (18, 1218920), (20, 1097028), (24, 914190), (30, 731352), (31, 707760), (36, 609460), (40, 548514), (45, 487568), (48, 457095), (60, 365676), (62, 353880), (72, 304730), (80, 274257), (90, 243784), (93, 235920), (120, 182838), (124, 176940), (144, 152365), (155, 141552), (180, 121892), (186, 117960), (240, 91419), (248, 88470), (279, 78640), (310, 70776), (360, 60946), (372, 58980), (465, 47184), (496, 44235), (558, 39320), (620, 35388), (720, 30473), (744, 29490), (930, 23592), (983, 22320), (1116, 19660), (1240, 17694), (1395, 15728), (1488, 14745), (1860, 11796), (1966, 11160), (2232, 9830), (2480, 8847), (2790, 7864), (2949, 7440), (3720, 5898), (3932, 5580), (4464, 4915)]