81862000

素因数分解:

$2^4\times 5^3\times {\mathrm{11}}^1\times {\mathrm{61}}^2$

素因数の和:156

約数の個数: 120

約数和(自身を含む): 219535056

約数和(自身を除く): 137673056

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 61, 80, 88, 100, 110, 122, 125, 176, 200, 220, 244, 250, 275, 305, 400, 440, 488, 500, 550, 610, 671, 880, 976, 1000, 1100, 1220, 1342, 1375, 1525, 2000, 2200, 2440, 2684, 2750, 3050, 3355, 3721, 4400, 4880, 5368, 5500, 6100, 6710, 7442, 7625, 10736, 11000, 12200, 13420, 14884, 15250, 16775, 18605, 22000, 24400, 26840, 29768, 30500, 33550, 37210, 40931, 53680, 59536, 61000, 67100, 74420, 81862, 83875, 93025, 122000, 134200, 148840, 163724, 167750, 186050, 204655, 268400, 297680, 327448, 335500, 372100, 409310, 465125, 654896, 671000, 744200, 818620, 930250, 1023275, 1342000, 1488400, 1637240, 1860500, 2046550, 3274480, 3721000, 4093100, 5116375, 7442000, 8186200, 10232750, 16372400, 20465500, 40931000, 81862000]

約数ペア:

[(1, 81862000), (2, 40931000), (4, 20465500), (5, 16372400), (8, 10232750), (10, 8186200), (11, 7442000), (16, 5116375), (20, 4093100), (22, 3721000), (25, 3274480), (40, 2046550), (44, 1860500), (50, 1637240), (55, 1488400), (61, 1342000), (80, 1023275), (88, 930250), (100, 818620), (110, 744200), (122, 671000), (125, 654896), (176, 465125), (200, 409310), (220, 372100), (244, 335500), (250, 327448), (275, 297680), (305, 268400), (400, 204655), (440, 186050), (488, 167750), (500, 163724), (550, 148840), (610, 134200), (671, 122000), (880, 93025), (976, 83875), (1000, 81862), (1100, 74420), (1220, 67100), (1342, 61000), (1375, 59536), (1525, 53680), (2000, 40931), (2200, 37210), (2440, 33550), (2684, 30500), (2750, 29768), (3050, 26840), (3355, 24400), (3721, 22000), (4400, 18605), (4880, 16775), (5368, 15250), (5500, 14884), (6100, 13420), (6710, 12200), (7442, 11000), (7625, 10736)]