638707440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{8089}}^1$

素因数の和:8159

約数の個数: 160

約数和(自身を含む): 2311280640

約数和(自身を除く): 1672573200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 47, 48, 56, 60, 70, 80, 84, 94, 105, 112, 120, 140, 141, 168, 188, 210, 235, 240, 280, 282, 329, 336, 376, 420, 470, 560, 564, 658, 705, 752, 840, 940, 987, 1128, 1316, 1410, 1645, 1680, 1880, 1974, 2256, 2632, 2820, 3290, 3760, 3948, 4935, 5264, 5640, 6580, 7896, 8089, 9870, 11280, 13160, 15792, 16178, 19740, 24267, 26320, 32356, 39480, 40445, 48534, 56623, 64712, 78960, 80890, 97068, 113246, 121335, 129424, 161780, 169869, 194136, 226492, 242670, 283115, 323560, 339738, 380183, 388272, 452984, 485340, 566230, 647120, 679476, 760366, 849345, 905968, 970680, 1132460, 1140549, 1358952, 1520732, 1698690, 1900915, 1941360, 2264920, 2281098, 2661281, 2717904, 3041464, 3397380, 3801830, 4529840, 4562196, 5322562, 5702745, 6082928, 6794760, 7603660, 7983843, 9124392, 10645124, 11405490, 13306405, 13589520, 15207320, 15967686, 18248784, 21290248, 22810980, 26612810, 30414640, 31935372, 39919215, 42580496, 45621960, 53225620, 63870744, 79838430, 91243920, 106451240, 127741488, 159676860, 212902480, 319353720, 638707440]

約数ペア:

[(1, 638707440), (2, 319353720), (3, 212902480), (4, 159676860), (5, 127741488), (6, 106451240), (7, 91243920), (8, 79838430), (10, 63870744), (12, 53225620), (14, 45621960), (15, 42580496), (16, 39919215), (20, 31935372), (21, 30414640), (24, 26612810), (28, 22810980), (30, 21290248), (35, 18248784), (40, 15967686), (42, 15207320), (47, 13589520), (48, 13306405), (56, 11405490), (60, 10645124), (70, 9124392), (80, 7983843), (84, 7603660), (94, 6794760), (105, 6082928), (112, 5702745), (120, 5322562), (140, 4562196), (141, 4529840), (168, 3801830), (188, 3397380), (210, 3041464), (235, 2717904), (240, 2661281), (280, 2281098), (282, 2264920), (329, 1941360), (336, 1900915), (376, 1698690), (420, 1520732), (470, 1358952), (560, 1140549), (564, 1132460), (658, 970680), (705, 905968), (752, 849345), (840, 760366), (940, 679476), (987, 647120), (1128, 566230), (1316, 485340), (1410, 452984), (1645, 388272), (1680, 380183), (1880, 339738), (1974, 323560), (2256, 283115), (2632, 242670), (2820, 226492), (3290, 194136), (3760, 169869), (3948, 161780), (4935, 129424), (5264, 121335), (5640, 113246), (6580, 97068), (7896, 80890), (8089, 78960), (9870, 64712), (11280, 56623), (13160, 48534), (15792, 40445), (16178, 39480), (19740, 32356), (24267, 26320)]