219458480

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{44971}}^1$

素因数の和:45045

約数の個数: 40

約数和(自身を含む): 518617104

約数和(自身を除く): 299158624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 44971, 89942, 179884, 224855, 359768, 449710, 719536, 899420, 1798840, 2743231, 3597680, 5486462, 10972924, 13716155, 21945848, 27432310, 43891696, 54864620, 109729240, 219458480]

約数ペア:

[(1, 219458480), (2, 109729240), (4, 54864620), (5, 43891696), (8, 27432310), (10, 21945848), (16, 13716155), (20, 10972924), (40, 5486462), (61, 3597680), (80, 2743231), (122, 1798840), (244, 899420), (305, 719536), (488, 449710), (610, 359768), (976, 224855), (1220, 179884), (2440, 89942), (4880, 44971)]