78555780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:294

約数の個数: 144

約数和(自身を含む): 250614000

約数和(自身を除く): 172058220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 101, 116, 145, 149, 174, 180, 202, 261, 290, 298, 303, 348, 404, 435, 447, 505, 522, 580, 596, 606, 745, 870, 894, 909, 1010, 1044, 1212, 1305, 1341, 1490, 1515, 1740, 1788, 1818, 2020, 2235, 2610, 2682, 2929, 2980, 3030, 3636, 4321, 4470, 4545, 5220, 5364, 5858, 6060, 6705, 8642, 8787, 8940, 9090, 11716, 12963, 13410, 14645, 15049, 17284, 17574, 18180, 21605, 25926, 26361, 26820, 29290, 30098, 35148, 38889, 43210, 43935, 45147, 51852, 52722, 58580, 60196, 64815, 75245, 77778, 86420, 87870, 90294, 105444, 129630, 131805, 135441, 150490, 155556, 175740, 180588, 194445, 225735, 259260, 263610, 270882, 300980, 388890, 436421, 451470, 527220, 541764, 677205, 777780, 872842, 902940, 1309263, 1354410, 1745684, 2182105, 2618526, 2708820, 3927789, 4364210, 5237052, 6546315, 7855578, 8728420, 13092630, 15711156, 19638945, 26185260, 39277890, 78555780]

約数ペア:

[(1, 78555780), (2, 39277890), (3, 26185260), (4, 19638945), (5, 15711156), (6, 13092630), (9, 8728420), (10, 7855578), (12, 6546315), (15, 5237052), (18, 4364210), (20, 3927789), (29, 2708820), (30, 2618526), (36, 2182105), (45, 1745684), (58, 1354410), (60, 1309263), (87, 902940), (90, 872842), (101, 777780), (116, 677205), (145, 541764), (149, 527220), (174, 451470), (180, 436421), (202, 388890), (261, 300980), (290, 270882), (298, 263610), (303, 259260), (348, 225735), (404, 194445), (435, 180588), (447, 175740), (505, 155556), (522, 150490), (580, 135441), (596, 131805), (606, 129630), (745, 105444), (870, 90294), (894, 87870), (909, 86420), (1010, 77778), (1044, 75245), (1212, 64815), (1305, 60196), (1341, 58580), (1490, 52722), (1515, 51852), (1740, 45147), (1788, 43935), (1818, 43210), (2020, 38889), (2235, 35148), (2610, 30098), (2682, 29290), (2929, 26820), (2980, 26361), (3030, 25926), (3636, 21605), (4321, 18180), (4470, 17574), (4545, 17284), (5220, 15049), (5364, 14645), (5858, 13410), (6060, 12963), (6705, 11716), (8642, 9090), (8787, 8940)]