777780945

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1\times {\mathrm{617}}^1$

素因数の和:994

約数の個数: 48

約数和(自身を含む): 1368029520

約数和(自身を除く): 590248575

約数列:

[1, 3, 5, 9, 15, 45, 109, 257, 327, 545, 617, 771, 981, 1285, 1635, 1851, 2313, 3085, 3855, 4905, 5553, 9255, 11565, 27765, 28013, 67253, 84039, 140065, 158569, 201759, 252117, 336265, 420195, 475707, 605277, 792845, 1008795, 1260585, 1427121, 2378535, 3026385, 7135605, 17284021, 51852063, 86420105, 155556189, 259260315, 777780945]

約数ペア:

[(1, 777780945), (3, 259260315), (5, 155556189), (9, 86420105), (15, 51852063), (45, 17284021), (109, 7135605), (257, 3026385), (327, 2378535), (545, 1427121), (617, 1260585), (771, 1008795), (981, 792845), (1285, 605277), (1635, 475707), (1851, 420195), (2313, 336265), (3085, 252117), (3855, 201759), (4905, 158569), (5553, 140065), (9255, 84039), (11565, 67253), (27765, 28013)]