99408040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{311}}^1$

素因数の和:514

約数の個数: 64

約数和(自身を含む): 229806720

約数和(自身を除く): 130398680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 131, 244, 262, 305, 311, 488, 524, 610, 622, 655, 1048, 1220, 1244, 1310, 1555, 2440, 2488, 2620, 3110, 5240, 6220, 7991, 12440, 15982, 18971, 31964, 37942, 39955, 40741, 63928, 75884, 79910, 81482, 94855, 151768, 159820, 162964, 189710, 203705, 319640, 325928, 379420, 407410, 758840, 814820, 1629640, 2485201, 4970402, 9940804, 12426005, 19881608, 24852010, 49704020, 99408040]

約数ペア:

[(1, 99408040), (2, 49704020), (4, 24852010), (5, 19881608), (8, 12426005), (10, 9940804), (20, 4970402), (40, 2485201), (61, 1629640), (122, 814820), (131, 758840), (244, 407410), (262, 379420), (305, 325928), (311, 319640), (488, 203705), (524, 189710), (610, 162964), (622, 159820), (655, 151768), (1048, 94855), (1220, 81482), (1244, 79910), (1310, 75884), (1555, 63928), (2440, 40741), (2488, 39955), (2620, 37942), (3110, 31964), (5240, 18971), (6220, 15982), (7991, 12440)]