75978420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{601}}^1$

素因数の和:670

約数の個数: 144

約数和(自身を含む): 253649088

約数和(自身を除く): 177670668

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 49, 60, 70, 84, 86, 98, 105, 129, 140, 147, 172, 196, 210, 215, 245, 258, 294, 301, 420, 430, 490, 516, 588, 601, 602, 645, 735, 860, 903, 980, 1202, 1204, 1290, 1470, 1505, 1803, 1806, 2107, 2404, 2580, 2940, 3005, 3010, 3606, 3612, 4207, 4214, 4515, 6010, 6020, 6321, 7212, 8414, 8428, 9015, 9030, 10535, 12020, 12621, 12642, 16828, 18030, 18060, 21035, 21070, 25242, 25284, 25843, 29449, 31605, 36060, 42070, 42140, 50484, 51686, 58898, 63105, 63210, 77529, 84140, 88347, 103372, 117796, 126210, 126420, 129215, 147245, 155058, 176694, 180901, 252420, 258430, 294490, 310116, 353388, 361802, 387645, 441735, 516860, 542703, 588980, 723604, 775290, 883470, 904505, 1085406, 1266307, 1550580, 1766940, 1809010, 2170812, 2532614, 2713515, 3618020, 3798921, 5065228, 5427030, 6331535, 7597842, 10854060, 12663070, 15195684, 18994605, 25326140, 37989210, 75978420]

約数ペア:

[(1, 75978420), (2, 37989210), (3, 25326140), (4, 18994605), (5, 15195684), (6, 12663070), (7, 10854060), (10, 7597842), (12, 6331535), (14, 5427030), (15, 5065228), (20, 3798921), (21, 3618020), (28, 2713515), (30, 2532614), (35, 2170812), (42, 1809010), (43, 1766940), (49, 1550580), (60, 1266307), (70, 1085406), (84, 904505), (86, 883470), (98, 775290), (105, 723604), (129, 588980), (140, 542703), (147, 516860), (172, 441735), (196, 387645), (210, 361802), (215, 353388), (245, 310116), (258, 294490), (294, 258430), (301, 252420), (420, 180901), (430, 176694), (490, 155058), (516, 147245), (588, 129215), (601, 126420), (602, 126210), (645, 117796), (735, 103372), (860, 88347), (903, 84140), (980, 77529), (1202, 63210), (1204, 63105), (1290, 58898), (1470, 51686), (1505, 50484), (1803, 42140), (1806, 42070), (2107, 36060), (2404, 31605), (2580, 29449), (2940, 25843), (3005, 25284), (3010, 25242), (3606, 21070), (3612, 21035), (4207, 18060), (4214, 18030), (4515, 16828), (6010, 12642), (6020, 12621), (6321, 12020), (7212, 10535), (8414, 9030), (8428, 9015)]