7921100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{379}}^1$

素因数の和:423

約数の個数: 72

約数和(自身を含む): 19790400

約数和(自身を除く): 11869300

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 190, 209, 220, 275, 379, 380, 418, 475, 550, 758, 836, 950, 1045, 1100, 1516, 1895, 1900, 2090, 3790, 4169, 4180, 5225, 7201, 7580, 8338, 9475, 10450, 14402, 16676, 18950, 20845, 20900, 28804, 36005, 37900, 41690, 72010, 79211, 83380, 104225, 144020, 158422, 180025, 208450, 316844, 360050, 396055, 416900, 720100, 792110, 1584220, 1980275, 3960550, 7921100]

約数ペア:

[(1, 7921100), (2, 3960550), (4, 1980275), (5, 1584220), (10, 792110), (11, 720100), (19, 416900), (20, 396055), (22, 360050), (25, 316844), (38, 208450), (44, 180025), (50, 158422), (55, 144020), (76, 104225), (95, 83380), (100, 79211), (110, 72010), (190, 41690), (209, 37900), (220, 36005), (275, 28804), (379, 20900), (380, 20845), (418, 18950), (475, 16676), (550, 14402), (758, 10450), (836, 9475), (950, 8338), (1045, 7580), (1100, 7201), (1516, 5225), (1895, 4180), (1900, 4169), (2090, 3790)]