691637620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1301}}^1\times {\mathrm{1399}}^1$

素因数の和:2728

約数の個数: 48

約数和(自身を含む): 1531152000

約数和(自身を除く): 839514380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1301, 1399, 2602, 2798, 5204, 5596, 6505, 6995, 13010, 13990, 24719, 26020, 26581, 27980, 49438, 53162, 98876, 106324, 123595, 132905, 247190, 265810, 494380, 531620, 1820099, 3640198, 7280396, 9100495, 18200990, 34581881, 36401980, 69163762, 138327524, 172909405, 345818810, 691637620]

約数ペア:

[(1, 691637620), (2, 345818810), (4, 172909405), (5, 138327524), (10, 69163762), (19, 36401980), (20, 34581881), (38, 18200990), (76, 9100495), (95, 7280396), (190, 3640198), (380, 1820099), (1301, 531620), (1399, 494380), (2602, 265810), (2798, 247190), (5204, 132905), (5596, 123595), (6505, 106324), (6995, 98876), (13010, 53162), (13990, 49438), (24719, 27980), (26020, 26581)]