15081820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:155

約数の個数: 96

約数和(自身を含む): 37255680

約数和(自身を除く): 22173860

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 43, 52, 65, 71, 76, 86, 95, 130, 142, 172, 190, 215, 247, 260, 284, 355, 380, 430, 494, 559, 710, 817, 860, 923, 988, 1118, 1235, 1349, 1420, 1634, 1846, 2236, 2470, 2698, 2795, 3053, 3268, 3692, 4085, 4615, 4940, 5396, 5590, 6106, 6745, 8170, 9230, 10621, 11180, 12212, 13490, 15265, 16340, 17537, 18460, 21242, 26980, 30530, 35074, 39689, 42484, 53105, 58007, 61060, 70148, 79378, 87685, 106210, 116014, 158756, 175370, 198445, 212420, 232028, 290035, 350740, 396890, 580070, 754091, 793780, 1160140, 1508182, 3016364, 3770455, 7540910, 15081820]

約数ペア:

[(1, 15081820), (2, 7540910), (4, 3770455), (5, 3016364), (10, 1508182), (13, 1160140), (19, 793780), (20, 754091), (26, 580070), (38, 396890), (43, 350740), (52, 290035), (65, 232028), (71, 212420), (76, 198445), (86, 175370), (95, 158756), (130, 116014), (142, 106210), (172, 87685), (190, 79378), (215, 70148), (247, 61060), (260, 58007), (284, 53105), (355, 42484), (380, 39689), (430, 35074), (494, 30530), (559, 26980), (710, 21242), (817, 18460), (860, 17537), (923, 16340), (988, 15265), (1118, 13490), (1235, 12212), (1349, 11180), (1420, 10621), (1634, 9230), (1846, 8170), (2236, 6745), (2470, 6106), (2698, 5590), (2795, 5396), (3053, 4940), (3268, 4615), (3692, 4085)]