656973520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:405

約数の個数: 160

約数和(自身を含む): 1807027200

約数和(自身を除く): 1150053680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 80, 94, 109, 112, 140, 188, 218, 229, 235, 280, 329, 376, 436, 458, 470, 545, 560, 658, 752, 763, 872, 916, 940, 1090, 1145, 1316, 1526, 1603, 1645, 1744, 1832, 1880, 2180, 2290, 2632, 3052, 3206, 3290, 3664, 3760, 3815, 4360, 4580, 5123, 5264, 6104, 6412, 6580, 7630, 8015, 8720, 9160, 10246, 10763, 12208, 12824, 13160, 15260, 16030, 18320, 20492, 21526, 24961, 25615, 25648, 26320, 30520, 32060, 35861, 40984, 43052, 49922, 51230, 53815, 61040, 64120, 71722, 75341, 81968, 86104, 99844, 102460, 107630, 124805, 128240, 143444, 150682, 172208, 174727, 179305, 199688, 204920, 215260, 249610, 286888, 301364, 349454, 358610, 376705, 399376, 409840, 430520, 499220, 573776, 602728, 698908, 717220, 753410, 861040, 873635, 998440, 1173167, 1205456, 1397816, 1434440, 1506820, 1747270, 1996880, 2346334, 2795632, 2868880, 3013640, 3494540, 4692668, 5865835, 6027280, 6989080, 8212169, 9385336, 11731670, 13978160, 16424338, 18770672, 23463340, 32848676, 41060845, 46926680, 65697352, 82121690, 93853360, 131394704, 164243380, 328486760, 656973520]

約数ペア:

[(1, 656973520), (2, 328486760), (4, 164243380), (5, 131394704), (7, 93853360), (8, 82121690), (10, 65697352), (14, 46926680), (16, 41060845), (20, 32848676), (28, 23463340), (35, 18770672), (40, 16424338), (47, 13978160), (56, 11731670), (70, 9385336), (80, 8212169), (94, 6989080), (109, 6027280), (112, 5865835), (140, 4692668), (188, 3494540), (218, 3013640), (229, 2868880), (235, 2795632), (280, 2346334), (329, 1996880), (376, 1747270), (436, 1506820), (458, 1434440), (470, 1397816), (545, 1205456), (560, 1173167), (658, 998440), (752, 873635), (763, 861040), (872, 753410), (916, 717220), (940, 698908), (1090, 602728), (1145, 573776), (1316, 499220), (1526, 430520), (1603, 409840), (1645, 399376), (1744, 376705), (1832, 358610), (1880, 349454), (2180, 301364), (2290, 286888), (2632, 249610), (3052, 215260), (3206, 204920), (3290, 199688), (3664, 179305), (3760, 174727), (3815, 172208), (4360, 150682), (4580, 143444), (5123, 128240), (5264, 124805), (6104, 107630), (6412, 102460), (6580, 99844), (7630, 86104), (8015, 81968), (8720, 75341), (9160, 71722), (10246, 64120), (10763, 61040), (12208, 53815), (12824, 51230), (13160, 49922), (15260, 43052), (16030, 40984), (18320, 35861), (20492, 32060), (21526, 30520), (24961, 26320), (25615, 25648)]