31578540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{467}}^1$

素因数の和:516

約数の個数: 144

約数和(自身を含む): 107557632

約数和(自身を除く): 75979092

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 49, 60, 69, 70, 84, 92, 98, 105, 115, 138, 140, 147, 161, 196, 210, 230, 245, 276, 294, 322, 345, 420, 460, 467, 483, 490, 588, 644, 690, 735, 805, 934, 966, 980, 1127, 1380, 1401, 1470, 1610, 1868, 1932, 2254, 2335, 2415, 2802, 2940, 3220, 3269, 3381, 4508, 4670, 4830, 5604, 5635, 6538, 6762, 7005, 9340, 9660, 9807, 10741, 11270, 13076, 13524, 14010, 16345, 16905, 19614, 21482, 22540, 22883, 28020, 32223, 32690, 33810, 39228, 42964, 45766, 49035, 53705, 64446, 65380, 67620, 68649, 75187, 91532, 98070, 107410, 114415, 128892, 137298, 150374, 161115, 196140, 214820, 225561, 228830, 274596, 300748, 322230, 343245, 375935, 451122, 457660, 526309, 644460, 686490, 751870, 902244, 1052618, 1127805, 1372980, 1503740, 1578927, 2105236, 2255610, 2631545, 3157854, 4511220, 5263090, 6315708, 7894635, 10526180, 15789270, 31578540]

約数ペア:

[(1, 31578540), (2, 15789270), (3, 10526180), (4, 7894635), (5, 6315708), (6, 5263090), (7, 4511220), (10, 3157854), (12, 2631545), (14, 2255610), (15, 2105236), (20, 1578927), (21, 1503740), (23, 1372980), (28, 1127805), (30, 1052618), (35, 902244), (42, 751870), (46, 686490), (49, 644460), (60, 526309), (69, 457660), (70, 451122), (84, 375935), (92, 343245), (98, 322230), (105, 300748), (115, 274596), (138, 228830), (140, 225561), (147, 214820), (161, 196140), (196, 161115), (210, 150374), (230, 137298), (245, 128892), (276, 114415), (294, 107410), (322, 98070), (345, 91532), (420, 75187), (460, 68649), (467, 67620), (483, 65380), (490, 64446), (588, 53705), (644, 49035), (690, 45766), (735, 42964), (805, 39228), (934, 33810), (966, 32690), (980, 32223), (1127, 28020), (1380, 22883), (1401, 22540), (1470, 21482), (1610, 19614), (1868, 16905), (1932, 16345), (2254, 14010), (2335, 13524), (2415, 13076), (2802, 11270), (2940, 10741), (3220, 9807), (3269, 9660), (3381, 9340), (4508, 7005), (4670, 6762), (4830, 6538), (5604, 5635)]