128808680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3217}}^1$

素因数の和:3259

約数の個数: 128

約数和(自身を含む): 389249280

約数和(自身を除く): 260440600

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 715, 728, 770, 910, 1001, 1144, 1430, 1540, 1820, 2002, 2860, 3080, 3217, 3640, 4004, 5005, 5720, 6434, 8008, 10010, 12868, 16085, 20020, 22519, 25736, 32170, 35387, 40040, 41821, 45038, 64340, 70774, 83642, 90076, 112595, 128680, 141548, 167284, 176935, 180152, 209105, 225190, 247709, 283096, 292747, 334568, 353870, 418210, 450380, 460031, 495418, 585494, 707740, 836420, 900760, 920062, 990836, 1170988, 1238545, 1415480, 1463735, 1672840, 1840124, 1981672, 2300155, 2341976, 2477090, 2927470, 3220217, 3680248, 4600310, 4954180, 5854940, 6440434, 9200620, 9908360, 11709880, 12880868, 16101085, 18401240, 25761736, 32202170, 64404340, 128808680]

約数ペア:

[(1, 128808680), (2, 64404340), (4, 32202170), (5, 25761736), (7, 18401240), (8, 16101085), (10, 12880868), (11, 11709880), (13, 9908360), (14, 9200620), (20, 6440434), (22, 5854940), (26, 4954180), (28, 4600310), (35, 3680248), (40, 3220217), (44, 2927470), (52, 2477090), (55, 2341976), (56, 2300155), (65, 1981672), (70, 1840124), (77, 1672840), (88, 1463735), (91, 1415480), (104, 1238545), (110, 1170988), (130, 990836), (140, 920062), (143, 900760), (154, 836420), (182, 707740), (220, 585494), (260, 495418), (280, 460031), (286, 450380), (308, 418210), (364, 353870), (385, 334568), (440, 292747), (455, 283096), (520, 247709), (572, 225190), (616, 209105), (715, 180152), (728, 176935), (770, 167284), (910, 141548), (1001, 128680), (1144, 112595), (1430, 90076), (1540, 83642), (1820, 70774), (2002, 64340), (2860, 45038), (3080, 41821), (3217, 40040), (3640, 35387), (4004, 32170), (5005, 25736), (5720, 22519), (6434, 20020), (8008, 16085), (10010, 12868)]