778830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1997}}^1$

素因数の和:2020

約数の個数: 32

約数和(自身を含む): 2013984

約数和(自身を除く): 1235154

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 1997, 3994, 5991, 9985, 11982, 19970, 25961, 29955, 51922, 59910, 77883, 129805, 155766, 259610, 389415, 778830]

約数ペア:

[(1, 778830), (2, 389415), (3, 259610), (5, 155766), (6, 129805), (10, 77883), (13, 59910), (15, 51922), (26, 29955), (30, 25961), (39, 19970), (65, 11982), (78, 9985), (130, 5991), (195, 3994), (390, 1997)]