645173690

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{131}}^1$

素因数の和:217

約数の個数: 144

約数和(自身を含む): 1497877920

約数和(自身を除く): 852704230

約数列:

[1, 2, 5, 7, 10, 14, 19, 23, 35, 38, 46, 49, 70, 95, 98, 115, 131, 133, 161, 190, 230, 245, 262, 266, 322, 437, 490, 529, 655, 665, 805, 874, 917, 931, 1058, 1127, 1310, 1330, 1610, 1834, 1862, 2185, 2254, 2489, 2645, 3013, 3059, 3703, 4370, 4585, 4655, 4978, 5290, 5635, 6026, 6118, 6419, 7406, 9170, 9310, 10051, 11270, 12445, 12838, 15065, 15295, 17423, 18515, 20102, 21091, 21413, 24890, 25921, 30130, 30590, 32095, 34846, 37030, 42182, 42826, 50255, 51842, 57247, 64190, 69299, 70357, 87115, 100510, 105455, 107065, 114494, 121961, 129605, 138598, 140714, 147637, 174230, 210910, 214130, 243922, 259210, 286235, 295274, 346495, 351785, 400729, 485093, 492499, 572470, 609805, 692990, 703570, 738185, 801458, 970186, 984998, 1219610, 1316681, 1476370, 2003645, 2425465, 2462495, 2633362, 2805103, 3395651, 4007290, 4850930, 4924990, 5610206, 6583405, 6791302, 9216767, 13166810, 14025515, 16978255, 18433534, 28051030, 33956510, 46083835, 64517369, 92167670, 129034738, 322586845, 645173690]

約数ペア:

[(1, 645173690), (2, 322586845), (5, 129034738), (7, 92167670), (10, 64517369), (14, 46083835), (19, 33956510), (23, 28051030), (35, 18433534), (38, 16978255), (46, 14025515), (49, 13166810), (70, 9216767), (95, 6791302), (98, 6583405), (115, 5610206), (131, 4924990), (133, 4850930), (161, 4007290), (190, 3395651), (230, 2805103), (245, 2633362), (262, 2462495), (266, 2425465), (322, 2003645), (437, 1476370), (490, 1316681), (529, 1219610), (655, 984998), (665, 970186), (805, 801458), (874, 738185), (917, 703570), (931, 692990), (1058, 609805), (1127, 572470), (1310, 492499), (1330, 485093), (1610, 400729), (1834, 351785), (1862, 346495), (2185, 295274), (2254, 286235), (2489, 259210), (2645, 243922), (3013, 214130), (3059, 210910), (3703, 174230), (4370, 147637), (4585, 140714), (4655, 138598), (4978, 129605), (5290, 121961), (5635, 114494), (6026, 107065), (6118, 105455), (6419, 100510), (7406, 87115), (9170, 70357), (9310, 69299), (10051, 64190), (11270, 57247), (12445, 51842), (12838, 50255), (15065, 42826), (15295, 42182), (17423, 37030), (18515, 34846), (20102, 32095), (21091, 30590), (21413, 30130), (24890, 25921)]