1283940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{1019}}^1$

素因数の和:1041

約数の個数: 72

約数和(自身を含む): 4455360

約数和(自身を除く): 3171420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1019, 1260, 2038, 3057, 4076, 5095, 6114, 7133, 9171, 10190, 12228, 14266, 15285, 18342, 20380, 21399, 28532, 30570, 35665, 36684, 42798, 45855, 61140, 64197, 71330, 85596, 91710, 106995, 128394, 142660, 183420, 213990, 256788, 320985, 427980, 641970, 1283940]

約数ペア:

[(1, 1283940), (2, 641970), (3, 427980), (4, 320985), (5, 256788), (6, 213990), (7, 183420), (9, 142660), (10, 128394), (12, 106995), (14, 91710), (15, 85596), (18, 71330), (20, 64197), (21, 61140), (28, 45855), (30, 42798), (35, 36684), (36, 35665), (42, 30570), (45, 28532), (60, 21399), (63, 20380), (70, 18342), (84, 15285), (90, 14266), (105, 12228), (126, 10190), (140, 9171), (180, 7133), (210, 6114), (252, 5095), (315, 4076), (420, 3057), (630, 2038), (1019, 1260)]