81308970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{193}}^1$

素因数の和:388

約数の個数: 96

約数和(自身を含む): 220806144

約数和(自身を除く): 139497174

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 151, 155, 186, 193, 279, 302, 310, 386, 453, 465, 558, 579, 755, 906, 930, 965, 1158, 1359, 1395, 1510, 1737, 1930, 2265, 2718, 2790, 2895, 3474, 4530, 4681, 5790, 5983, 6795, 8685, 9362, 11966, 13590, 14043, 17370, 17949, 23405, 28086, 29143, 29915, 35898, 42129, 46810, 53847, 58286, 59830, 70215, 84258, 87429, 89745, 107694, 140430, 145715, 174858, 179490, 210645, 262287, 269235, 291430, 421290, 437145, 524574, 538470, 874290, 903433, 1311435, 1806866, 2622870, 2710299, 4517165, 5420598, 8130897, 9034330, 13551495, 16261794, 27102990, 40654485, 81308970]

約数ペア:

[(1, 81308970), (2, 40654485), (3, 27102990), (5, 16261794), (6, 13551495), (9, 9034330), (10, 8130897), (15, 5420598), (18, 4517165), (30, 2710299), (31, 2622870), (45, 1806866), (62, 1311435), (90, 903433), (93, 874290), (151, 538470), (155, 524574), (186, 437145), (193, 421290), (279, 291430), (302, 269235), (310, 262287), (386, 210645), (453, 179490), (465, 174858), (558, 145715), (579, 140430), (755, 107694), (906, 89745), (930, 87429), (965, 84258), (1158, 70215), (1359, 59830), (1395, 58286), (1510, 53847), (1737, 46810), (1930, 42129), (2265, 35898), (2718, 29915), (2790, 29143), (2895, 28086), (3474, 23405), (4530, 17949), (4681, 17370), (5790, 14043), (5983, 13590), (6795, 11966), (8685, 9362)]