204418625

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 292481280

約数和(自身を除く): 88062655

約数列:

[1, 5, 17, 19, 25, 61, 83, 85, 95, 125, 305, 323, 415, 425, 475, 1037, 1159, 1411, 1525, 1577, 1615, 2075, 2125, 2375, 5063, 5185, 5795, 7055, 7625, 7885, 8075, 10375, 19703, 25315, 25925, 26809, 28975, 35275, 39425, 40375, 86071, 96197, 98515, 126575, 129625, 134045, 144875, 176375, 197125, 430355, 480985, 492575, 632875, 670225, 1635349, 2151775, 2404925, 2462875, 3351125, 8176745, 10758875, 12024625, 40883725, 204418625]

約数ペア:

[(1, 204418625), (5, 40883725), (17, 12024625), (19, 10758875), (25, 8176745), (61, 3351125), (83, 2462875), (85, 2404925), (95, 2151775), (125, 1635349), (305, 670225), (323, 632875), (415, 492575), (425, 480985), (475, 430355), (1037, 197125), (1159, 176375), (1411, 144875), (1525, 134045), (1577, 129625), (1615, 126575), (2075, 98515), (2125, 96197), (2375, 86071), (5063, 40375), (5185, 39425), (5795, 35275), (7055, 28975), (7625, 26809), (7885, 25925), (8075, 25315), (10375, 19703)]