51308720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1217}}^1$

素因数の和:1278

約数の個数: 80

約数和(自身を含む): 130491648

約数和(自身を除く): 79182928

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 248, 272, 310, 340, 496, 527, 620, 680, 1054, 1217, 1240, 1360, 2108, 2434, 2480, 2635, 4216, 4868, 5270, 6085, 8432, 9736, 10540, 12170, 19472, 20689, 21080, 24340, 37727, 41378, 42160, 48680, 75454, 82756, 97360, 103445, 150908, 165512, 188635, 206890, 301816, 331024, 377270, 413780, 603632, 641359, 754540, 827560, 1282718, 1509080, 1655120, 2565436, 3018160, 3206795, 5130872, 6413590, 10261744, 12827180, 25654360, 51308720]

約数ペア:

[(1, 51308720), (2, 25654360), (4, 12827180), (5, 10261744), (8, 6413590), (10, 5130872), (16, 3206795), (17, 3018160), (20, 2565436), (31, 1655120), (34, 1509080), (40, 1282718), (62, 827560), (68, 754540), (80, 641359), (85, 603632), (124, 413780), (136, 377270), (155, 331024), (170, 301816), (248, 206890), (272, 188635), (310, 165512), (340, 150908), (496, 103445), (527, 97360), (620, 82756), (680, 75454), (1054, 48680), (1217, 42160), (1240, 41378), (1360, 37727), (2108, 24340), (2434, 21080), (2480, 20689), (2635, 19472), (4216, 12170), (4868, 10540), (5270, 9736), (6085, 8432)]