291683960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:297

約数の個数: 128

約数和(自身を含む): 729699840

約数和(自身を除く): 438015880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 85, 101, 124, 136, 137, 155, 170, 202, 248, 274, 310, 340, 404, 505, 527, 548, 620, 680, 685, 808, 1010, 1054, 1096, 1240, 1370, 1717, 2020, 2108, 2329, 2635, 2740, 3131, 3434, 4040, 4216, 4247, 4658, 5270, 5480, 6262, 6868, 8494, 8585, 9316, 10540, 11645, 12524, 13736, 13837, 15655, 16988, 17170, 18632, 21080, 21235, 23290, 25048, 27674, 31310, 33976, 34340, 42470, 46580, 53227, 55348, 62620, 68680, 69185, 72199, 84940, 93160, 106454, 110696, 125240, 138370, 144398, 169880, 212908, 235229, 266135, 276740, 288796, 360995, 425816, 428947, 470458, 532270, 553480, 577592, 721990, 857894, 940916, 1064540, 1176145, 1443980, 1715788, 1881832, 2129080, 2144735, 2352290, 2887960, 3431576, 4289470, 4704580, 7292099, 8578940, 9409160, 14584198, 17157880, 29168396, 36460495, 58336792, 72920990, 145841980, 291683960]

約数ペア:

[(1, 291683960), (2, 145841980), (4, 72920990), (5, 58336792), (8, 36460495), (10, 29168396), (17, 17157880), (20, 14584198), (31, 9409160), (34, 8578940), (40, 7292099), (62, 4704580), (68, 4289470), (85, 3431576), (101, 2887960), (124, 2352290), (136, 2144735), (137, 2129080), (155, 1881832), (170, 1715788), (202, 1443980), (248, 1176145), (274, 1064540), (310, 940916), (340, 857894), (404, 721990), (505, 577592), (527, 553480), (548, 532270), (620, 470458), (680, 428947), (685, 425816), (808, 360995), (1010, 288796), (1054, 276740), (1096, 266135), (1240, 235229), (1370, 212908), (1717, 169880), (2020, 144398), (2108, 138370), (2329, 125240), (2635, 110696), (2740, 106454), (3131, 93160), (3434, 84940), (4040, 72199), (4216, 69185), (4247, 68680), (4658, 62620), (5270, 55348), (5480, 53227), (6262, 46580), (6868, 42470), (8494, 34340), (8585, 33976), (9316, 31310), (10540, 27674), (11645, 25048), (12524, 23290), (13736, 21235), (13837, 21080), (15655, 18632), (16988, 17170)]