81942900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21011}}^1$

素因数の和:21041

約数の個数: 72

約数和(自身を含む): 255337824

約数和(自身を除く): 173394924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 21011, 42022, 63033, 84044, 105055, 126066, 210110, 252132, 273143, 315165, 420220, 525275, 546286, 630330, 819429, 1050550, 1092572, 1260660, 1365715, 1575825, 1638858, 2101100, 2731430, 3151650, 3277716, 4097145, 5462860, 6303300, 6828575, 8194290, 13657150, 16388580, 20485725, 27314300, 40971450, 81942900]

約数ペア:

[(1, 81942900), (2, 40971450), (3, 27314300), (4, 20485725), (5, 16388580), (6, 13657150), (10, 8194290), (12, 6828575), (13, 6303300), (15, 5462860), (20, 4097145), (25, 3277716), (26, 3151650), (30, 2731430), (39, 2101100), (50, 1638858), (52, 1575825), (60, 1365715), (65, 1260660), (75, 1092572), (78, 1050550), (100, 819429), (130, 630330), (150, 546286), (156, 525275), (195, 420220), (260, 315165), (300, 273143), (325, 252132), (390, 210110), (650, 126066), (780, 105055), (975, 84044), (1300, 63033), (1950, 42022), (3900, 21011)]