855697960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{487}}^1$

素因数の和:651

約数の個数: 128

約数和(自身を含む): 2164377600

約数和(自身を除く): 1308679640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 109, 124, 130, 155, 218, 248, 260, 310, 403, 436, 487, 520, 545, 620, 806, 872, 974, 1090, 1240, 1417, 1612, 1948, 2015, 2180, 2435, 2834, 3224, 3379, 3896, 4030, 4360, 4870, 5668, 6331, 6758, 7085, 8060, 9740, 11336, 12662, 13516, 14170, 15097, 16120, 16895, 19480, 25324, 27032, 28340, 30194, 31655, 33790, 43927, 50648, 53083, 56680, 60388, 63310, 67580, 75485, 87854, 106166, 120776, 126620, 135160, 150970, 175708, 196261, 212332, 219635, 253240, 265415, 301940, 351416, 392522, 424664, 439270, 530830, 603880, 690079, 785044, 878540, 981305, 1061660, 1380158, 1570088, 1645573, 1757080, 1962610, 2123320, 2760316, 3291146, 3450395, 3925220, 5520632, 6582292, 6900790, 7850440, 8227865, 13164584, 13801580, 16455730, 21392449, 27603160, 32911460, 42784898, 65822920, 85569796, 106962245, 171139592, 213924490, 427848980, 855697960]

約数ペア:

[(1, 855697960), (2, 427848980), (4, 213924490), (5, 171139592), (8, 106962245), (10, 85569796), (13, 65822920), (20, 42784898), (26, 32911460), (31, 27603160), (40, 21392449), (52, 16455730), (62, 13801580), (65, 13164584), (104, 8227865), (109, 7850440), (124, 6900790), (130, 6582292), (155, 5520632), (218, 3925220), (248, 3450395), (260, 3291146), (310, 2760316), (403, 2123320), (436, 1962610), (487, 1757080), (520, 1645573), (545, 1570088), (620, 1380158), (806, 1061660), (872, 981305), (974, 878540), (1090, 785044), (1240, 690079), (1417, 603880), (1612, 530830), (1948, 439270), (2015, 424664), (2180, 392522), (2435, 351416), (2834, 301940), (3224, 265415), (3379, 253240), (3896, 219635), (4030, 212332), (4360, 196261), (4870, 175708), (5668, 150970), (6331, 135160), (6758, 126620), (7085, 120776), (8060, 106166), (9740, 87854), (11336, 75485), (12662, 67580), (13516, 63310), (14170, 60388), (15097, 56680), (16120, 53083), (16895, 50648), (19480, 43927), (25324, 33790), (27032, 31655), (28340, 30194)]