25115480999

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:564

約数の個数: 64

約数和(自身を含む): 31386009600

約数和(自身を除く): 6270528601

約数列:

[1, 7, 19, 71, 79, 131, 133, 257, 497, 553, 917, 1349, 1501, 1799, 2489, 4883, 5609, 9301, 9443, 10349, 10507, 17423, 18247, 20303, 33667, 34181, 39263, 65107, 72443, 106571, 127729, 142121, 176719, 196631, 235669, 346693, 385757, 639673, 734779, 745997, 1237033, 1376417, 1441513, 2390357, 2426851, 2659693, 2700299, 4477711, 5143453, 10090591, 13960801, 16732499, 18617851, 27388747, 45416783, 50534167, 97725607, 188838203, 191721229, 317917481, 353739169, 1321867421, 3587925857, 25115480999]

約数ペア:

[(1, 25115480999), (7, 3587925857), (19, 1321867421), (71, 353739169), (79, 317917481), (131, 191721229), (133, 188838203), (257, 97725607), (497, 50534167), (553, 45416783), (917, 27388747), (1349, 18617851), (1501, 16732499), (1799, 13960801), (2489, 10090591), (4883, 5143453), (5609, 4477711), (9301, 2700299), (9443, 2659693), (10349, 2426851), (10507, 2390357), (17423, 1441513), (18247, 1376417), (20303, 1237033), (33667, 745997), (34181, 734779), (39263, 639673), (65107, 385757), (72443, 346693), (106571, 235669), (127729, 196631), (142121, 176719)]