81863210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:204

約数の個数: 128

約数和(自身を含む): 191600640

約数和(自身を除く): 109737430

約数列:

[1, 2, 5, 10, 11, 13, 19, 22, 23, 26, 38, 46, 55, 65, 95, 110, 115, 130, 131, 143, 190, 209, 230, 247, 253, 262, 286, 299, 418, 437, 494, 506, 598, 655, 715, 874, 1045, 1235, 1265, 1310, 1430, 1441, 1495, 1703, 2090, 2185, 2470, 2489, 2530, 2717, 2882, 2990, 3013, 3289, 3406, 4370, 4807, 4978, 5434, 5681, 6026, 6578, 7205, 8515, 9614, 11362, 12445, 13585, 14410, 15065, 16445, 17030, 18733, 24035, 24890, 27170, 27379, 28405, 30130, 32357, 32890, 33143, 37466, 39169, 48070, 54758, 56810, 57247, 62491, 64714, 66286, 78338, 93665, 114494, 124982, 136895, 161785, 165715, 187330, 195845, 273790, 286235, 312455, 323570, 331430, 355927, 391690, 430859, 572470, 624910, 629717, 711854, 744211, 861718, 1259434, 1488422, 1779635, 2154295, 3148585, 3559270, 3721055, 4308590, 6297170, 7442110, 8186321, 16372642, 40931605, 81863210]

約数ペア:

[(1, 81863210), (2, 40931605), (5, 16372642), (10, 8186321), (11, 7442110), (13, 6297170), (19, 4308590), (22, 3721055), (23, 3559270), (26, 3148585), (38, 2154295), (46, 1779635), (55, 1488422), (65, 1259434), (95, 861718), (110, 744211), (115, 711854), (130, 629717), (131, 624910), (143, 572470), (190, 430859), (209, 391690), (230, 355927), (247, 331430), (253, 323570), (262, 312455), (286, 286235), (299, 273790), (418, 195845), (437, 187330), (494, 165715), (506, 161785), (598, 136895), (655, 124982), (715, 114494), (874, 93665), (1045, 78338), (1235, 66286), (1265, 64714), (1310, 62491), (1430, 57247), (1441, 56810), (1495, 54758), (1703, 48070), (2090, 39169), (2185, 37466), (2470, 33143), (2489, 32890), (2530, 32357), (2717, 30130), (2882, 28405), (2990, 27379), (3013, 27170), (3289, 24890), (3406, 24035), (4370, 18733), (4807, 17030), (4978, 16445), (5434, 15065), (5681, 14410), (6026, 13585), (6578, 12445), (7205, 11362), (8515, 9614)]