1900569680

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{389461}}^1$

素因数の和:389535

約数の個数: 40

約数和(自身を含む): 4491275784

約数和(自身を除く): 2590706104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 389461, 778922, 1557844, 1947305, 3115688, 3894610, 6231376, 7789220, 15578440, 23757121, 31156880, 47514242, 95028484, 118785605, 190056968, 237571210, 380113936, 475142420, 950284840, 1900569680]

約数ペア:

[(1, 1900569680), (2, 950284840), (4, 475142420), (5, 380113936), (8, 237571210), (10, 190056968), (16, 118785605), (20, 95028484), (40, 47514242), (61, 31156880), (80, 23757121), (122, 15578440), (244, 7789220), (305, 6231376), (488, 3894610), (610, 3115688), (976, 1947305), (1220, 1557844), (2440, 778922), (4880, 389461)]