72978165

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{167}}^1$

素因数の和:280

約数の個数: 80

約数和(自身を含む): 143434368

約数和(自身を除く): 70456203

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 83, 117, 135, 167, 195, 249, 351, 405, 415, 501, 585, 747, 835, 1053, 1079, 1245, 1503, 1755, 2171, 2241, 2505, 3237, 3735, 4509, 5265, 5395, 6513, 6723, 7515, 9711, 10855, 11205, 13527, 13861, 16185, 19539, 22545, 29133, 32565, 33615, 41583, 48555, 58617, 67635, 69305, 87399, 97695, 124749, 145665, 175851, 180193, 207915, 293085, 374247, 436995, 540579, 623745, 879255, 900965, 1122741, 1621737, 1871235, 2702895, 4865211, 5613705, 8108685, 14595633, 24326055, 72978165]

約数ペア:

[(1, 72978165), (3, 24326055), (5, 14595633), (9, 8108685), (13, 5613705), (15, 4865211), (27, 2702895), (39, 1871235), (45, 1621737), (65, 1122741), (81, 900965), (83, 879255), (117, 623745), (135, 540579), (167, 436995), (195, 374247), (249, 293085), (351, 207915), (405, 180193), (415, 175851), (501, 145665), (585, 124749), (747, 97695), (835, 87399), (1053, 69305), (1079, 67635), (1245, 58617), (1503, 48555), (1755, 41583), (2171, 33615), (2241, 32565), (2505, 29133), (3237, 22545), (3735, 19539), (4509, 16185), (5265, 13861), (5395, 13527), (6513, 11205), (6723, 10855), (7515, 9711)]