17687920

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{9613}}^1$

素因数の和:9649

約数の個数: 40

約数和(自身を含む): 42916896

約数和(自身を除く): 25228976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 9613, 19226, 38452, 48065, 76904, 96130, 153808, 192260, 221099, 384520, 442198, 769040, 884396, 1105495, 1768792, 2210990, 3537584, 4421980, 8843960, 17687920]

約数ペア:

[(1, 17687920), (2, 8843960), (4, 4421980), (5, 3537584), (8, 2210990), (10, 1768792), (16, 1105495), (20, 884396), (23, 769040), (40, 442198), (46, 384520), (80, 221099), (92, 192260), (115, 153808), (184, 96130), (230, 76904), (368, 48065), (460, 38452), (920, 19226), (1840, 9613)]