18821530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:120

約数の個数: 96

約数和(自身を含む): 44060544

約数和(自身を除く): 25239014

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 37, 43, 65, 70, 74, 86, 91, 130, 169, 182, 185, 215, 259, 301, 338, 370, 430, 455, 481, 518, 559, 602, 845, 910, 962, 1118, 1183, 1295, 1505, 1591, 1690, 2366, 2405, 2590, 2795, 3010, 3182, 3367, 3913, 4810, 5590, 5915, 6253, 6734, 7267, 7826, 7955, 11137, 11830, 12506, 14534, 15910, 16835, 19565, 20683, 22274, 31265, 33670, 36335, 39130, 41366, 43771, 50869, 55685, 62530, 72670, 87542, 101738, 103415, 111370, 144781, 206830, 218855, 254345, 268879, 289562, 437710, 508690, 537758, 723905, 1344395, 1447810, 1882153, 2688790, 3764306, 9410765, 18821530]

約数ペア:

[(1, 18821530), (2, 9410765), (5, 3764306), (7, 2688790), (10, 1882153), (13, 1447810), (14, 1344395), (26, 723905), (35, 537758), (37, 508690), (43, 437710), (65, 289562), (70, 268879), (74, 254345), (86, 218855), (91, 206830), (130, 144781), (169, 111370), (182, 103415), (185, 101738), (215, 87542), (259, 72670), (301, 62530), (338, 55685), (370, 50869), (430, 43771), (455, 41366), (481, 39130), (518, 36335), (559, 33670), (602, 31265), (845, 22274), (910, 20683), (962, 19565), (1118, 16835), (1183, 15910), (1295, 14534), (1505, 12506), (1591, 11830), (1690, 11137), (2366, 7955), (2405, 7826), (2590, 7267), (2795, 6734), (3010, 6253), (3182, 5915), (3367, 5590), (3913, 4810)]