81477500

素因数分解:

$2^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:169

約数の個数: 120

約数和(自身を含む): 202060320

約数和(自身を除く): 120582820

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 25, 26, 46, 50, 52, 65, 92, 100, 109, 115, 125, 130, 218, 230, 250, 260, 299, 325, 436, 460, 500, 545, 575, 598, 625, 650, 1090, 1150, 1196, 1250, 1300, 1417, 1495, 1625, 2180, 2300, 2500, 2507, 2725, 2834, 2875, 2990, 3250, 5014, 5450, 5668, 5750, 5980, 6500, 7085, 7475, 8125, 10028, 10900, 11500, 12535, 13625, 14170, 14375, 14950, 16250, 25070, 27250, 28340, 28750, 29900, 32500, 32591, 35425, 37375, 50140, 54500, 57500, 62675, 65182, 68125, 70850, 74750, 125350, 130364, 136250, 141700, 149500, 162955, 177125, 186875, 250700, 272500, 313375, 325910, 354250, 373750, 626750, 651820, 708500, 747500, 814775, 885625, 1253500, 1566875, 1629550, 1771250, 3133750, 3259100, 3542500, 4073875, 6267500, 8147750, 16295500, 20369375, 40738750, 81477500]

約数ペア:

[(1, 81477500), (2, 40738750), (4, 20369375), (5, 16295500), (10, 8147750), (13, 6267500), (20, 4073875), (23, 3542500), (25, 3259100), (26, 3133750), (46, 1771250), (50, 1629550), (52, 1566875), (65, 1253500), (92, 885625), (100, 814775), (109, 747500), (115, 708500), (125, 651820), (130, 626750), (218, 373750), (230, 354250), (250, 325910), (260, 313375), (299, 272500), (325, 250700), (436, 186875), (460, 177125), (500, 162955), (545, 149500), (575, 141700), (598, 136250), (625, 130364), (650, 125350), (1090, 74750), (1150, 70850), (1196, 68125), (1250, 65182), (1300, 62675), (1417, 57500), (1495, 54500), (1625, 50140), (2180, 37375), (2300, 35425), (2500, 32591), (2507, 32500), (2725, 29900), (2834, 28750), (2875, 28340), (2990, 27250), (3250, 25070), (5014, 16250), (5450, 14950), (5668, 14375), (5750, 14170), (5980, 13625), (6500, 12535), (7085, 11500), (7475, 10900), (8125, 10028)]