313804940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{563}}^1$

素因数の和:663

約数の個数: 72

約数和(自身を含む): 705665520

約数和(自身を除く): 391860580

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 563, 580, 620, 899, 961, 1126, 1798, 1922, 2252, 2815, 3596, 3844, 4495, 4805, 5630, 8990, 9610, 11260, 16327, 17453, 17980, 19220, 27869, 32654, 34906, 55738, 65308, 69812, 81635, 87265, 111476, 139345, 163270, 174530, 278690, 326540, 349060, 506137, 541043, 557380, 1012274, 1082086, 2024548, 2164172, 2530685, 2705215, 5061370, 5410430, 10122740, 10820860, 15690247, 31380494, 62760988, 78451235, 156902470, 313804940]

約数ペア:

[(1, 313804940), (2, 156902470), (4, 78451235), (5, 62760988), (10, 31380494), (20, 15690247), (29, 10820860), (31, 10122740), (58, 5410430), (62, 5061370), (116, 2705215), (124, 2530685), (145, 2164172), (155, 2024548), (290, 1082086), (310, 1012274), (563, 557380), (580, 541043), (620, 506137), (899, 349060), (961, 326540), (1126, 278690), (1798, 174530), (1922, 163270), (2252, 139345), (2815, 111476), (3596, 87265), (3844, 81635), (4495, 69812), (4805, 65308), (5630, 55738), (8990, 34906), (9610, 32654), (11260, 27869), (16327, 19220), (17453, 17980)]