9900880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11251}}^1$

素因数の和:11275

約数の個数: 40

約数和(自身を含む): 25114464

約数和(自身を除く): 15213584

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 11251, 22502, 45004, 56255, 90008, 112510, 123761, 180016, 225020, 247522, 450040, 495044, 618805, 900080, 990088, 1237610, 1980176, 2475220, 4950440, 9900880]

約数ペア:

[(1, 9900880), (2, 4950440), (4, 2475220), (5, 1980176), (8, 1237610), (10, 990088), (11, 900080), (16, 618805), (20, 495044), (22, 450040), (40, 247522), (44, 225020), (55, 180016), (80, 123761), (88, 112510), (110, 90008), (176, 56255), (220, 45004), (440, 22502), (880, 11251)]