66640980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1193}}^1$

素因数の和:1238

約数の個数: 144

約数和(自身を含む): 228674880

約数和(自身を除く): 162033900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 190, 196, 210, 228, 245, 266, 285, 294, 380, 399, 420, 490, 532, 570, 588, 665, 735, 798, 931, 980, 1140, 1193, 1330, 1470, 1596, 1862, 1995, 2386, 2660, 2793, 2940, 3579, 3724, 3990, 4655, 4772, 5586, 5965, 7158, 7980, 8351, 9310, 11172, 11930, 13965, 14316, 16702, 17895, 18620, 22667, 23860, 25053, 27930, 33404, 35790, 41755, 45334, 50106, 55860, 58457, 68001, 71580, 83510, 90668, 100212, 113335, 116914, 125265, 136002, 158669, 167020, 175371, 226670, 233828, 250530, 272004, 292285, 317338, 340005, 350742, 453340, 476007, 501060, 584570, 634676, 680010, 701484, 793345, 876855, 952014, 1110683, 1169140, 1360020, 1586690, 1753710, 1904028, 2221366, 2380035, 3173380, 3332049, 3507420, 4442732, 4760070, 5553415, 6664098, 9520140, 11106830, 13328196, 16660245, 22213660, 33320490, 66640980]

約数ペア:

[(1, 66640980), (2, 33320490), (3, 22213660), (4, 16660245), (5, 13328196), (6, 11106830), (7, 9520140), (10, 6664098), (12, 5553415), (14, 4760070), (15, 4442732), (19, 3507420), (20, 3332049), (21, 3173380), (28, 2380035), (30, 2221366), (35, 1904028), (38, 1753710), (42, 1586690), (49, 1360020), (57, 1169140), (60, 1110683), (70, 952014), (76, 876855), (84, 793345), (95, 701484), (98, 680010), (105, 634676), (114, 584570), (133, 501060), (140, 476007), (147, 453340), (190, 350742), (196, 340005), (210, 317338), (228, 292285), (245, 272004), (266, 250530), (285, 233828), (294, 226670), (380, 175371), (399, 167020), (420, 158669), (490, 136002), (532, 125265), (570, 116914), (588, 113335), (665, 100212), (735, 90668), (798, 83510), (931, 71580), (980, 68001), (1140, 58457), (1193, 55860), (1330, 50106), (1470, 45334), (1596, 41755), (1862, 35790), (1995, 33404), (2386, 27930), (2660, 25053), (2793, 23860), (2940, 22667), (3579, 18620), (3724, 17895), (3990, 16702), (4655, 14316), (4772, 13965), (5586, 11930), (5965, 11172), (7158, 9310), (7980, 8351)]