72715120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{421}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 180845568

約数和(自身を除く): 108130448

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 127, 136, 170, 254, 272, 340, 421, 508, 635, 680, 842, 1016, 1270, 1360, 1684, 2032, 2105, 2159, 2540, 3368, 4210, 4318, 5080, 6736, 7157, 8420, 8636, 10160, 10795, 14314, 16840, 17272, 21590, 28628, 33680, 34544, 35785, 43180, 53467, 57256, 71570, 86360, 106934, 114512, 143140, 172720, 213868, 267335, 286280, 427736, 534670, 572560, 855472, 908939, 1069340, 1817878, 2138680, 3635756, 4277360, 4544695, 7271512, 9089390, 14543024, 18178780, 36357560, 72715120]

約数ペア:

[(1, 72715120), (2, 36357560), (4, 18178780), (5, 14543024), (8, 9089390), (10, 7271512), (16, 4544695), (17, 4277360), (20, 3635756), (34, 2138680), (40, 1817878), (68, 1069340), (80, 908939), (85, 855472), (127, 572560), (136, 534670), (170, 427736), (254, 286280), (272, 267335), (340, 213868), (421, 172720), (508, 143140), (635, 114512), (680, 106934), (842, 86360), (1016, 71570), (1270, 57256), (1360, 53467), (1684, 43180), (2032, 35785), (2105, 34544), (2159, 33680), (2540, 28628), (3368, 21590), (4210, 17272), (4318, 16840), (5080, 14314), (6736, 10795), (7157, 10160), (8420, 8636)]