787828420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{563}}^1$

素因数の和:701

約数の個数: 96

約数和(自身を含む): 1785885696

約数和(自身を除く): 998057276

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 61, 62, 74, 122, 124, 148, 155, 185, 244, 305, 310, 370, 563, 610, 620, 740, 1126, 1147, 1220, 1891, 2252, 2257, 2294, 2815, 3782, 4514, 4588, 5630, 5735, 7564, 9028, 9455, 11260, 11285, 11470, 17453, 18910, 20831, 22570, 22940, 34343, 34906, 37820, 41662, 45140, 68686, 69812, 69967, 83324, 87265, 104155, 137372, 139934, 171715, 174530, 208310, 279868, 343430, 349060, 349835, 416620, 645761, 686860, 699670, 1064633, 1270691, 1291522, 1399340, 2129266, 2541382, 2583044, 3228805, 4258532, 5082764, 5323165, 6353455, 6457610, 10646330, 12706910, 12915220, 21292660, 25413820, 39391421, 78782842, 157565684, 196957105, 393914210, 787828420]

約数ペア:

[(1, 787828420), (2, 393914210), (4, 196957105), (5, 157565684), (10, 78782842), (20, 39391421), (31, 25413820), (37, 21292660), (61, 12915220), (62, 12706910), (74, 10646330), (122, 6457610), (124, 6353455), (148, 5323165), (155, 5082764), (185, 4258532), (244, 3228805), (305, 2583044), (310, 2541382), (370, 2129266), (563, 1399340), (610, 1291522), (620, 1270691), (740, 1064633), (1126, 699670), (1147, 686860), (1220, 645761), (1891, 416620), (2252, 349835), (2257, 349060), (2294, 343430), (2815, 279868), (3782, 208310), (4514, 174530), (4588, 171715), (5630, 139934), (5735, 137372), (7564, 104155), (9028, 87265), (9455, 83324), (11260, 69967), (11285, 69812), (11470, 68686), (17453, 45140), (18910, 41662), (20831, 37820), (22570, 34906), (22940, 34343)]