81881910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:211

約数の個数: 144

約数和(自身を含む): 239514912

約数和(自身を除く): 157633002

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 73, 90, 99, 103, 110, 121, 146, 165, 198, 206, 219, 242, 309, 330, 363, 365, 438, 495, 515, 605, 618, 657, 726, 730, 803, 927, 990, 1030, 1089, 1095, 1133, 1210, 1314, 1545, 1606, 1815, 1854, 2178, 2190, 2266, 2409, 3090, 3285, 3399, 3630, 4015, 4635, 4818, 5445, 5665, 6570, 6798, 7227, 7519, 8030, 8833, 9270, 10197, 10890, 11330, 12045, 12463, 14454, 15038, 16995, 17666, 20394, 22557, 24090, 24926, 26499, 33990, 36135, 37389, 37595, 44165, 45114, 50985, 52998, 62315, 67671, 72270, 74778, 75190, 79497, 82709, 88330, 101970, 112167, 112785, 124630, 132495, 135342, 158994, 165418, 186945, 224334, 225570, 248127, 264990, 338355, 373890, 397485, 413545, 496254, 560835, 676710, 744381, 794970, 827090, 909799, 1121670, 1240635, 1488762, 1819598, 2481270, 2729397, 3721905, 4548995, 5458794, 7443810, 8188191, 9097990, 13646985, 16376382, 27293970, 40940955, 81881910]

約数ペア:

[(1, 81881910), (2, 40940955), (3, 27293970), (5, 16376382), (6, 13646985), (9, 9097990), (10, 8188191), (11, 7443810), (15, 5458794), (18, 4548995), (22, 3721905), (30, 2729397), (33, 2481270), (45, 1819598), (55, 1488762), (66, 1240635), (73, 1121670), (90, 909799), (99, 827090), (103, 794970), (110, 744381), (121, 676710), (146, 560835), (165, 496254), (198, 413545), (206, 397485), (219, 373890), (242, 338355), (309, 264990), (330, 248127), (363, 225570), (365, 224334), (438, 186945), (495, 165418), (515, 158994), (605, 135342), (618, 132495), (657, 124630), (726, 112785), (730, 112167), (803, 101970), (927, 88330), (990, 82709), (1030, 79497), (1089, 75190), (1095, 74778), (1133, 72270), (1210, 67671), (1314, 62315), (1545, 52998), (1606, 50985), (1815, 45114), (1854, 44165), (2178, 37595), (2190, 37389), (2266, 36135), (2409, 33990), (3090, 26499), (3285, 24926), (3399, 24090), (3630, 22557), (4015, 20394), (4635, 17666), (4818, 16995), (5445, 15038), (5665, 14454), (6570, 12463), (6798, 12045), (7227, 11330), (7519, 10890), (8030, 10197), (8833, 9270)]