20701840

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11251}}^1$

素因数の和:11287

約数の個数: 40

約数和(自身を含む): 50228928

約数和(自身を除く): 29527088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11251, 22502, 45004, 56255, 90008, 112510, 180016, 225020, 258773, 450040, 517546, 900080, 1035092, 1293865, 2070184, 2587730, 4140368, 5175460, 10350920, 20701840]

約数ペア:

[(1, 20701840), (2, 10350920), (4, 5175460), (5, 4140368), (8, 2587730), (10, 2070184), (16, 1293865), (20, 1035092), (23, 900080), (40, 517546), (46, 450040), (80, 258773), (92, 225020), (115, 180016), (184, 112510), (230, 90008), (368, 56255), (460, 45004), (920, 22502), (1840, 11251)]