778978240

素因数分解:

$2^6\times 5^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:450

約数の個数: 112

約数和(自身を含む): 1899757440

約数和(自身を除く): 1120779200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 139, 160, 166, 211, 278, 320, 332, 415, 422, 556, 664, 695, 830, 844, 1055, 1112, 1328, 1390, 1660, 1688, 2110, 2224, 2656, 2780, 3320, 3376, 4220, 4448, 5312, 5560, 6640, 6752, 8440, 8896, 11120, 11537, 13280, 13504, 16880, 17513, 22240, 23074, 26560, 29329, 33760, 35026, 44480, 46148, 57685, 58658, 67520, 70052, 87565, 92296, 115370, 117316, 140104, 146645, 175130, 184592, 230740, 234632, 280208, 293290, 350260, 369184, 461480, 469264, 560416, 586580, 700520, 738368, 922960, 938528, 1120832, 1173160, 1401040, 1845920, 1877056, 2346320, 2434307, 2802080, 3691840, 4692640, 4868614, 5604160, 9385280, 9737228, 12171535, 19474456, 24343070, 38948912, 48686140, 77897824, 97372280, 155795648, 194744560, 389489120, 778978240]

約数ペア:

[(1, 778978240), (2, 389489120), (4, 194744560), (5, 155795648), (8, 97372280), (10, 77897824), (16, 48686140), (20, 38948912), (32, 24343070), (40, 19474456), (64, 12171535), (80, 9737228), (83, 9385280), (139, 5604160), (160, 4868614), (166, 4692640), (211, 3691840), (278, 2802080), (320, 2434307), (332, 2346320), (415, 1877056), (422, 1845920), (556, 1401040), (664, 1173160), (695, 1120832), (830, 938528), (844, 922960), (1055, 738368), (1112, 700520), (1328, 586580), (1390, 560416), (1660, 469264), (1688, 461480), (2110, 369184), (2224, 350260), (2656, 293290), (2780, 280208), (3320, 234632), (3376, 230740), (4220, 184592), (4448, 175130), (5312, 146645), (5560, 140104), (6640, 117316), (6752, 115370), (8440, 92296), (8896, 87565), (11120, 70052), (11537, 67520), (13280, 58658), (13504, 57685), (16880, 46148), (17513, 44480), (22240, 35026), (23074, 33760), (26560, 29329)]