131116240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{421}}^1$

素因数の和:680

約数の個数: 80

約数和(自身を含む): 324956880

約数和(自身を除く): 193840640

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 229, 272, 340, 421, 458, 680, 842, 916, 1145, 1360, 1684, 1832, 2105, 2290, 3368, 3664, 3893, 4210, 4580, 6736, 7157, 7786, 8420, 9160, 14314, 15572, 16840, 18320, 19465, 28628, 31144, 33680, 35785, 38930, 57256, 62288, 71570, 77860, 96409, 114512, 143140, 155720, 192818, 286280, 311440, 385636, 482045, 572560, 771272, 964090, 1542544, 1638953, 1928180, 3277906, 3856360, 6555812, 7712720, 8194765, 13111624, 16389530, 26223248, 32779060, 65558120, 131116240]

約数ペア:

[(1, 131116240), (2, 65558120), (4, 32779060), (5, 26223248), (8, 16389530), (10, 13111624), (16, 8194765), (17, 7712720), (20, 6555812), (34, 3856360), (40, 3277906), (68, 1928180), (80, 1638953), (85, 1542544), (136, 964090), (170, 771272), (229, 572560), (272, 482045), (340, 385636), (421, 311440), (458, 286280), (680, 192818), (842, 155720), (916, 143140), (1145, 114512), (1360, 96409), (1684, 77860), (1832, 71570), (2105, 62288), (2290, 57256), (3368, 38930), (3664, 35785), (3893, 33680), (4210, 31144), (4580, 28628), (6736, 19465), (7157, 18320), (7786, 16840), (8420, 15572), (9160, 14314)]