20464519215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^2\times {\mathrm{71}}^2$

素因数の和:262

約数の個数: 144

約数和(自身を含む): 40595092992

約数和(自身を除く): 20130573777

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 41, 69, 71, 105, 115, 123, 161, 205, 213, 287, 345, 355, 483, 497, 615, 805, 861, 943, 1065, 1435, 1491, 1633, 1681, 2415, 2485, 2829, 2911, 4305, 4715, 4899, 5041, 5043, 6601, 7455, 8165, 8405, 8733, 11431, 11767, 14145, 14555, 15123, 19803, 20377, 24495, 25205, 25215, 33005, 34293, 35287, 35301, 38663, 43665, 57155, 58835, 61131, 66953, 75615, 99015, 101885, 105861, 115943, 115989, 119351, 171465, 176435, 176505, 193315, 200859, 206681, 270641, 305655, 334765, 347829, 358053, 468671, 529305, 579715, 579945, 596755, 620043, 811601, 811923, 835457, 1004295, 1033405, 1353205, 1406013, 1446767, 1739145, 1790265, 2343355, 2434803, 2506371, 2745073, 3100215, 4058005, 4059615, 4177285, 4340301, 4753663, 7030065, 7233835, 8235219, 8473921, 12174015, 12531855, 13725365, 14260989, 19215511, 21701505, 23768315, 25421763, 33275641, 41176095, 42369605, 57646533, 59317447, 71304945, 96077555, 99826923, 127108815, 166378205, 177952341, 194900183, 288232665, 296587235, 499134615, 584700549, 889761705, 974500915, 1364301281, 2923502745, 4092903843, 6821506405, 20464519215]

約数ペア:

[(1, 20464519215), (3, 6821506405), (5, 4092903843), (7, 2923502745), (15, 1364301281), (21, 974500915), (23, 889761705), (35, 584700549), (41, 499134615), (69, 296587235), (71, 288232665), (105, 194900183), (115, 177952341), (123, 166378205), (161, 127108815), (205, 99826923), (213, 96077555), (287, 71304945), (345, 59317447), (355, 57646533), (483, 42369605), (497, 41176095), (615, 33275641), (805, 25421763), (861, 23768315), (943, 21701505), (1065, 19215511), (1435, 14260989), (1491, 13725365), (1633, 12531855), (1681, 12174015), (2415, 8473921), (2485, 8235219), (2829, 7233835), (2911, 7030065), (4305, 4753663), (4715, 4340301), (4899, 4177285), (5041, 4059615), (5043, 4058005), (6601, 3100215), (7455, 2745073), (8165, 2506371), (8405, 2434803), (8733, 2343355), (11431, 1790265), (11767, 1739145), (14145, 1446767), (14555, 1406013), (15123, 1353205), (19803, 1033405), (20377, 1004295), (24495, 835457), (25205, 811923), (25215, 811601), (33005, 620043), (34293, 596755), (35287, 579945), (35301, 579715), (38663, 529305), (43665, 468671), (57155, 358053), (58835, 347829), (61131, 334765), (66953, 305655), (75615, 270641), (99015, 206681), (101885, 200859), (105861, 193315), (115943, 176505), (115989, 176435), (119351, 171465)]