20195760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6473}}^1$

素因数の和:6502

約数の個数: 80

約数和(自身を含む): 67433184

約数和(自身を除く): 47237424

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6473, 12946, 19419, 25892, 32365, 38838, 51784, 64730, 77676, 84149, 97095, 103568, 129460, 155352, 168298, 194190, 252447, 258920, 310704, 336596, 388380, 420745, 504894, 517840, 673192, 776760, 841490, 1009788, 1262235, 1346384, 1553520, 1682980, 2019576, 2524470, 3365960, 4039152, 5048940, 6731920, 10097880, 20195760]

約数ペア:

[(1, 20195760), (2, 10097880), (3, 6731920), (4, 5048940), (5, 4039152), (6, 3365960), (8, 2524470), (10, 2019576), (12, 1682980), (13, 1553520), (15, 1346384), (16, 1262235), (20, 1009788), (24, 841490), (26, 776760), (30, 673192), (39, 517840), (40, 504894), (48, 420745), (52, 388380), (60, 336596), (65, 310704), (78, 258920), (80, 252447), (104, 194190), (120, 168298), (130, 155352), (156, 129460), (195, 103568), (208, 97095), (240, 84149), (260, 77676), (312, 64730), (390, 51784), (520, 38838), (624, 32365), (780, 25892), (1040, 19419), (1560, 12946), (3120, 6473)]