18312580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{337}}^1$

素因数の和:389

約数の個数: 96

約数和(自身を含む): 47698560

約数和(自身を除く): 29385980

約数列:

[1, 2, 4, 5, 10, 11, 13, 19, 20, 22, 26, 38, 44, 52, 55, 65, 76, 95, 110, 130, 143, 190, 209, 220, 247, 260, 286, 337, 380, 418, 494, 572, 674, 715, 836, 988, 1045, 1235, 1348, 1430, 1685, 2090, 2470, 2717, 2860, 3370, 3707, 4180, 4381, 4940, 5434, 6403, 6740, 7414, 8762, 10868, 12806, 13585, 14828, 17524, 18535, 21905, 25612, 27170, 32015, 37070, 43810, 48191, 54340, 64030, 70433, 74140, 83239, 87620, 96382, 128060, 140866, 166478, 192764, 240955, 281732, 332956, 352165, 416195, 481910, 704330, 832390, 915629, 963820, 1408660, 1664780, 1831258, 3662516, 4578145, 9156290, 18312580]

約数ペア:

[(1, 18312580), (2, 9156290), (4, 4578145), (5, 3662516), (10, 1831258), (11, 1664780), (13, 1408660), (19, 963820), (20, 915629), (22, 832390), (26, 704330), (38, 481910), (44, 416195), (52, 352165), (55, 332956), (65, 281732), (76, 240955), (95, 192764), (110, 166478), (130, 140866), (143, 128060), (190, 96382), (209, 87620), (220, 83239), (247, 74140), (260, 70433), (286, 64030), (337, 54340), (380, 48191), (418, 43810), (494, 37070), (572, 32015), (674, 27170), (715, 25612), (836, 21905), (988, 18535), (1045, 17524), (1235, 14828), (1348, 13585), (1430, 12806), (1685, 10868), (2090, 8762), (2470, 7414), (2717, 6740), (2860, 6403), (3370, 5434), (3707, 4940), (4180, 4381)]