81479970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{487}}^1$

素因数の和:537

約数の個数: 144

約数和(自身を含む): 250765632

約数和(自身を除く): 169285662

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 13, 15, 18, 22, 26, 30, 33, 39, 45, 55, 65, 66, 78, 90, 99, 110, 117, 130, 143, 165, 169, 195, 198, 234, 286, 330, 338, 390, 429, 487, 495, 507, 585, 715, 845, 858, 974, 990, 1014, 1170, 1287, 1430, 1461, 1521, 1690, 1859, 2145, 2435, 2535, 2574, 2922, 3042, 3718, 4290, 4383, 4870, 5070, 5357, 5577, 6331, 6435, 7305, 7605, 8766, 9295, 10714, 11154, 12662, 12870, 14610, 15210, 16071, 16731, 18590, 18993, 21915, 26785, 27885, 31655, 32142, 33462, 37986, 43830, 48213, 53570, 55770, 56979, 63310, 69641, 80355, 82303, 83655, 94965, 96426, 113958, 139282, 160710, 164606, 167310, 189930, 208923, 241065, 246909, 284895, 348205, 411515, 417846, 482130, 493818, 569790, 626769, 696410, 740727, 823030, 905333, 1044615, 1234545, 1253538, 1481454, 1810666, 2089230, 2469090, 2715999, 3133845, 3703635, 4526665, 5431998, 6267690, 7407270, 8147997, 9053330, 13579995, 16295994, 27159990, 40739985, 81479970]

約数ペア:

[(1, 81479970), (2, 40739985), (3, 27159990), (5, 16295994), (6, 13579995), (9, 9053330), (10, 8147997), (11, 7407270), (13, 6267690), (15, 5431998), (18, 4526665), (22, 3703635), (26, 3133845), (30, 2715999), (33, 2469090), (39, 2089230), (45, 1810666), (55, 1481454), (65, 1253538), (66, 1234545), (78, 1044615), (90, 905333), (99, 823030), (110, 740727), (117, 696410), (130, 626769), (143, 569790), (165, 493818), (169, 482130), (195, 417846), (198, 411515), (234, 348205), (286, 284895), (330, 246909), (338, 241065), (390, 208923), (429, 189930), (487, 167310), (495, 164606), (507, 160710), (585, 139282), (715, 113958), (845, 96426), (858, 94965), (974, 83655), (990, 82303), (1014, 80355), (1170, 69641), (1287, 63310), (1430, 56979), (1461, 55770), (1521, 53570), (1690, 48213), (1859, 43830), (2145, 37986), (2435, 33462), (2535, 32142), (2574, 31655), (2922, 27885), (3042, 26785), (3718, 21915), (4290, 18993), (4383, 18590), (4870, 16731), (5070, 16071), (5357, 15210), (5577, 14610), (6331, 12870), (6435, 12662), (7305, 11154), (7605, 10714), (8766, 9295)]