78015420

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{20639}}^1$

素因数の和:20664

約数の個数: 96

約数和(自身を含む): 277401600

約数和(自身を除く): 199386180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 20639, 41278, 61917, 82556, 103195, 123834, 144473, 185751, 206390, 247668, 288946, 309585, 371502, 412780, 433419, 557253, 577892, 619170, 722365, 743004, 866838, 928755, 1114506, 1238340, 1300257, 1444730, 1733676, 1857510, 2167095, 2229012, 2600514, 2786265, 2889460, 3715020, 3900771, 4334190, 5201028, 5572530, 6501285, 7801542, 8668380, 11145060, 13002570, 15603084, 19503855, 26005140, 39007710, 78015420]

約数ペア:

[(1, 78015420), (2, 39007710), (3, 26005140), (4, 19503855), (5, 15603084), (6, 13002570), (7, 11145060), (9, 8668380), (10, 7801542), (12, 6501285), (14, 5572530), (15, 5201028), (18, 4334190), (20, 3900771), (21, 3715020), (27, 2889460), (28, 2786265), (30, 2600514), (35, 2229012), (36, 2167095), (42, 1857510), (45, 1733676), (54, 1444730), (60, 1300257), (63, 1238340), (70, 1114506), (84, 928755), (90, 866838), (105, 743004), (108, 722365), (126, 619170), (135, 577892), (140, 557253), (180, 433419), (189, 412780), (210, 371502), (252, 309585), (270, 288946), (315, 247668), (378, 206390), (420, 185751), (540, 144473), (630, 123834), (756, 103195), (945, 82556), (1260, 61917), (1890, 41278), (3780, 20639)]