131317240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{773}}^1$

素因数の和:952

約数の個数: 64

約数和(自身を含む): 307618560

約数和(自身を除く): 176301320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 137, 155, 248, 274, 310, 548, 620, 685, 773, 1096, 1240, 1370, 1546, 2740, 3092, 3865, 4247, 5480, 6184, 7730, 8494, 15460, 16988, 21235, 23963, 30920, 33976, 42470, 47926, 84940, 95852, 105901, 119815, 169880, 191704, 211802, 239630, 423604, 479260, 529505, 847208, 958520, 1059010, 2118020, 3282931, 4236040, 6565862, 13131724, 16414655, 26263448, 32829310, 65658620, 131317240]

約数ペア:

[(1, 131317240), (2, 65658620), (4, 32829310), (5, 26263448), (8, 16414655), (10, 13131724), (20, 6565862), (31, 4236040), (40, 3282931), (62, 2118020), (124, 1059010), (137, 958520), (155, 847208), (248, 529505), (274, 479260), (310, 423604), (548, 239630), (620, 211802), (685, 191704), (773, 169880), (1096, 119815), (1240, 105901), (1370, 95852), (1546, 84940), (2740, 47926), (3092, 42470), (3865, 33976), (4247, 30920), (5480, 23963), (6184, 21235), (7730, 16988), (8494, 15460)]