17919760

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{9739}}^1$

素因数の和:9775

約数の個数: 40

約数和(自身を含む): 43479360

約数和(自身を除く): 25559600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 9739, 19478, 38956, 48695, 77912, 97390, 155824, 194780, 223997, 389560, 447994, 779120, 895988, 1119985, 1791976, 2239970, 3583952, 4479940, 8959880, 17919760]

約数ペア:

[(1, 17919760), (2, 8959880), (4, 4479940), (5, 3583952), (8, 2239970), (10, 1791976), (16, 1119985), (20, 895988), (23, 779120), (40, 447994), (46, 389560), (80, 223997), (92, 194780), (115, 155824), (184, 97390), (230, 77912), (368, 48695), (460, 38956), (920, 19478), (1840, 9739)]