81362450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:180

約数の個数: 96

約数和(自身を含む): 173238912

約数和(自身を除く): 91876462

約数列:

[1, 2, 5, 10, 13, 25, 26, 41, 43, 50, 65, 71, 82, 86, 130, 142, 205, 215, 325, 355, 410, 430, 533, 559, 650, 710, 923, 1025, 1066, 1075, 1118, 1763, 1775, 1846, 2050, 2150, 2665, 2795, 2911, 3053, 3526, 3550, 4615, 5330, 5590, 5822, 6106, 8815, 9230, 13325, 13975, 14555, 15265, 17630, 22919, 23075, 26650, 27950, 29110, 30530, 37843, 39689, 44075, 45838, 46150, 72775, 75686, 76325, 79378, 88150, 114595, 125173, 145550, 152650, 189215, 198445, 229190, 250346, 378430, 396890, 572975, 625865, 946075, 992225, 1145950, 1251730, 1627249, 1892150, 1984450, 3129325, 3254498, 6258650, 8136245, 16272490, 40681225, 81362450]

約数ペア:

[(1, 81362450), (2, 40681225), (5, 16272490), (10, 8136245), (13, 6258650), (25, 3254498), (26, 3129325), (41, 1984450), (43, 1892150), (50, 1627249), (65, 1251730), (71, 1145950), (82, 992225), (86, 946075), (130, 625865), (142, 572975), (205, 396890), (215, 378430), (325, 250346), (355, 229190), (410, 198445), (430, 189215), (533, 152650), (559, 145550), (650, 125173), (710, 114595), (923, 88150), (1025, 79378), (1066, 76325), (1075, 75686), (1118, 72775), (1763, 46150), (1775, 45838), (1846, 44075), (2050, 39689), (2150, 37843), (2665, 30530), (2795, 29110), (2911, 27950), (3053, 26650), (3526, 23075), (3550, 22919), (4615, 17630), (5330, 15265), (5590, 14555), (5822, 13975), (6106, 13325), (8815, 9230)]