311445530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:121

約数の個数: 144

約数和(自身を含む): 700503552

約数和(自身を除く): 389058022

約数列:

[1, 2, 5, 10, 11, 19, 22, 23, 31, 38, 46, 55, 62, 95, 110, 115, 121, 155, 190, 209, 230, 242, 253, 310, 341, 361, 418, 437, 506, 589, 605, 682, 713, 722, 874, 1045, 1178, 1210, 1265, 1426, 1705, 1805, 2090, 2185, 2299, 2530, 2783, 2945, 3410, 3565, 3610, 3751, 3971, 4370, 4598, 4807, 5566, 5890, 6479, 7130, 7502, 7843, 7942, 8303, 9614, 11191, 11495, 12958, 13547, 13915, 15686, 16606, 18755, 19855, 22382, 22990, 24035, 27094, 27830, 32395, 37510, 39215, 39710, 41515, 43681, 48070, 52877, 55955, 64790, 67735, 71269, 78430, 83030, 86273, 87362, 91333, 105754, 111910, 123101, 135470, 142538, 149017, 172546, 182666, 218405, 246202, 257393, 264385, 298034, 356345, 431365, 436810, 456665, 514786, 528770, 615505, 712690, 745085, 862730, 913330, 1004663, 1231010, 1286965, 1354111, 1490170, 1639187, 2009326, 2573930, 2708222, 2831323, 3278374, 5023315, 5662646, 6770555, 8195935, 10046630, 13541110, 14156615, 16391870, 28313230, 31144553, 62289106, 155722765, 311445530]

約数ペア:

[(1, 311445530), (2, 155722765), (5, 62289106), (10, 31144553), (11, 28313230), (19, 16391870), (22, 14156615), (23, 13541110), (31, 10046630), (38, 8195935), (46, 6770555), (55, 5662646), (62, 5023315), (95, 3278374), (110, 2831323), (115, 2708222), (121, 2573930), (155, 2009326), (190, 1639187), (209, 1490170), (230, 1354111), (242, 1286965), (253, 1231010), (310, 1004663), (341, 913330), (361, 862730), (418, 745085), (437, 712690), (506, 615505), (589, 528770), (605, 514786), (682, 456665), (713, 436810), (722, 431365), (874, 356345), (1045, 298034), (1178, 264385), (1210, 257393), (1265, 246202), (1426, 218405), (1705, 182666), (1805, 172546), (2090, 149017), (2185, 142538), (2299, 135470), (2530, 123101), (2783, 111910), (2945, 105754), (3410, 91333), (3565, 87362), (3610, 86273), (3751, 83030), (3971, 78430), (4370, 71269), (4598, 67735), (4807, 64790), (5566, 55955), (5890, 52877), (6479, 48070), (7130, 43681), (7502, 41515), (7843, 39710), (7942, 39215), (8303, 37510), (9614, 32395), (11191, 27830), (11495, 27094), (12958, 24035), (13547, 22990), (13915, 22382), (15686, 19855), (16606, 18755)]