1257616840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1\times {\mathrm{3251}}^1$

素因数の和:3790

約数の個数: 64

約数和(自身を含む): 2985336000

約数和(自身を除く): 1727719160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 509, 760, 1018, 2036, 2545, 3251, 4072, 5090, 6502, 9671, 10180, 13004, 16255, 19342, 20360, 26008, 32510, 38684, 48355, 61769, 65020, 77368, 96710, 123538, 130040, 193420, 247076, 308845, 386840, 494152, 617690, 1235380, 1654759, 2470760, 3309518, 6619036, 8273795, 13238072, 16547590, 31440421, 33095180, 62880842, 66190360, 125761684, 157202105, 251523368, 314404210, 628808420, 1257616840]

約数ペア:

[(1, 1257616840), (2, 628808420), (4, 314404210), (5, 251523368), (8, 157202105), (10, 125761684), (19, 66190360), (20, 62880842), (38, 33095180), (40, 31440421), (76, 16547590), (95, 13238072), (152, 8273795), (190, 6619036), (380, 3309518), (509, 2470760), (760, 1654759), (1018, 1235380), (2036, 617690), (2545, 494152), (3251, 386840), (4072, 308845), (5090, 247076), (6502, 193420), (9671, 130040), (10180, 123538), (13004, 96710), (16255, 77368), (19342, 65020), (20360, 61769), (26008, 48355), (32510, 38684)]