83687500

素因数分解:

$2^2\times 5^6\times {\mathrm{13}}^1\times {\mathrm{103}}^1$

素因数の和:150

約数の個数: 84

約数和(自身を含む): 199059952

約数和(自身を除く): 115372452

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 103, 125, 130, 206, 250, 260, 325, 412, 500, 515, 625, 650, 1030, 1250, 1300, 1339, 1625, 2060, 2500, 2575, 2678, 3125, 3250, 5150, 5356, 6250, 6500, 6695, 8125, 10300, 12500, 12875, 13390, 15625, 16250, 25750, 26780, 31250, 32500, 33475, 40625, 51500, 62500, 64375, 66950, 81250, 128750, 133900, 162500, 167375, 203125, 257500, 321875, 334750, 406250, 643750, 669500, 812500, 836875, 1287500, 1609375, 1673750, 3218750, 3347500, 4184375, 6437500, 8368750, 16737500, 20921875, 41843750, 83687500]

約数ペア:

[(1, 83687500), (2, 41843750), (4, 20921875), (5, 16737500), (10, 8368750), (13, 6437500), (20, 4184375), (25, 3347500), (26, 3218750), (50, 1673750), (52, 1609375), (65, 1287500), (100, 836875), (103, 812500), (125, 669500), (130, 643750), (206, 406250), (250, 334750), (260, 321875), (325, 257500), (412, 203125), (500, 167375), (515, 162500), (625, 133900), (650, 128750), (1030, 81250), (1250, 66950), (1300, 64375), (1339, 62500), (1625, 51500), (2060, 40625), (2500, 33475), (2575, 32500), (2678, 31250), (3125, 26780), (3250, 25750), (5150, 16250), (5356, 15625), (6250, 13390), (6500, 12875), (6695, 12500), (8125, 10300)]