199612100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3389}}^1$

素因数の和:3453

約数の個数: 72

約数和(自身を含む): 470803200

約数和(自身を除く): 271191100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 38, 50, 62, 76, 95, 100, 124, 155, 190, 310, 380, 475, 589, 620, 775, 950, 1178, 1550, 1900, 2356, 2945, 3100, 3389, 5890, 6778, 11780, 13556, 14725, 16945, 29450, 33890, 58900, 64391, 67780, 84725, 105059, 128782, 169450, 210118, 257564, 321955, 338900, 420236, 525295, 643910, 1050590, 1287820, 1609775, 1996121, 2101180, 2626475, 3219550, 3992242, 5252950, 6439100, 7984484, 9980605, 10505900, 19961210, 39922420, 49903025, 99806050, 199612100]

約数ペア:

[(1, 199612100), (2, 99806050), (4, 49903025), (5, 39922420), (10, 19961210), (19, 10505900), (20, 9980605), (25, 7984484), (31, 6439100), (38, 5252950), (50, 3992242), (62, 3219550), (76, 2626475), (95, 2101180), (100, 1996121), (124, 1609775), (155, 1287820), (190, 1050590), (310, 643910), (380, 525295), (475, 420236), (589, 338900), (620, 321955), (775, 257564), (950, 210118), (1178, 169450), (1550, 128782), (1900, 105059), (2356, 84725), (2945, 67780), (3100, 64391), (3389, 58900), (5890, 33890), (6778, 29450), (11780, 16945), (13556, 14725)]