774632375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:393

約数の個数: 64

約数和(自身を含む): 1123200000

約数和(自身を除く): 348567625

約数列:

[1, 5, 11, 19, 25, 55, 95, 125, 149, 199, 209, 275, 475, 745, 995, 1045, 1375, 1639, 2189, 2375, 2831, 3725, 3781, 4975, 5225, 8195, 10945, 14155, 18625, 18905, 24875, 26125, 29651, 31141, 40975, 41591, 54725, 70775, 94525, 148255, 155705, 204875, 207955, 273625, 326161, 353875, 472625, 563369, 741275, 778525, 1039775, 1630805, 2816845, 3706375, 3892625, 5198875, 6197059, 8154025, 14084225, 30985295, 40770125, 70421125, 154926475, 774632375]

約数ペア:

[(1, 774632375), (5, 154926475), (11, 70421125), (19, 40770125), (25, 30985295), (55, 14084225), (95, 8154025), (125, 6197059), (149, 5198875), (199, 3892625), (209, 3706375), (275, 2816845), (475, 1630805), (745, 1039775), (995, 778525), (1045, 741275), (1375, 563369), (1639, 472625), (2189, 353875), (2375, 326161), (2831, 273625), (3725, 207955), (3781, 204875), (4975, 155705), (5225, 148255), (8195, 94525), (10945, 70775), (14155, 54725), (18625, 41591), (18905, 40975), (24875, 31141), (26125, 29651)]