81997188

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{631}}^1$

素因数の和:682

約数の個数: 144

約数和(自身を含む): 254185344

約数和(自身を除く): 172188156

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 17, 21, 26, 28, 34, 39, 42, 49, 51, 52, 68, 78, 84, 91, 98, 102, 119, 147, 156, 182, 196, 204, 221, 238, 273, 294, 357, 364, 442, 476, 546, 588, 631, 637, 663, 714, 833, 884, 1092, 1262, 1274, 1326, 1428, 1547, 1666, 1893, 1911, 2499, 2524, 2548, 2652, 3094, 3332, 3786, 3822, 4417, 4641, 4998, 6188, 7572, 7644, 8203, 8834, 9282, 9996, 10727, 10829, 13251, 16406, 17668, 18564, 21454, 21658, 24609, 26502, 30919, 32181, 32487, 32812, 42908, 43316, 49218, 53004, 57421, 61838, 64362, 64974, 75089, 92757, 98436, 114842, 123676, 128724, 129948, 139451, 150178, 172263, 185514, 225267, 229684, 278902, 300356, 344526, 371028, 401947, 418353, 450534, 525623, 557804, 689052, 803894, 836706, 901068, 976157, 1051246, 1205841, 1576869, 1607788, 1673412, 1952314, 2102492, 2411682, 2928471, 3153738, 3904628, 4823364, 5856942, 6307476, 6833099, 11713884, 13666198, 20499297, 27332396, 40998594, 81997188]

約数ペア:

[(1, 81997188), (2, 40998594), (3, 27332396), (4, 20499297), (6, 13666198), (7, 11713884), (12, 6833099), (13, 6307476), (14, 5856942), (17, 4823364), (21, 3904628), (26, 3153738), (28, 2928471), (34, 2411682), (39, 2102492), (42, 1952314), (49, 1673412), (51, 1607788), (52, 1576869), (68, 1205841), (78, 1051246), (84, 976157), (91, 901068), (98, 836706), (102, 803894), (119, 689052), (147, 557804), (156, 525623), (182, 450534), (196, 418353), (204, 401947), (221, 371028), (238, 344526), (273, 300356), (294, 278902), (357, 229684), (364, 225267), (442, 185514), (476, 172263), (546, 150178), (588, 139451), (631, 129948), (637, 128724), (663, 123676), (714, 114842), (833, 98436), (884, 92757), (1092, 75089), (1262, 64974), (1274, 64362), (1326, 61838), (1428, 57421), (1547, 53004), (1666, 49218), (1893, 43316), (1911, 42908), (2499, 32812), (2524, 32487), (2548, 32181), (2652, 30919), (3094, 26502), (3332, 24609), (3786, 21658), (3822, 21454), (4417, 18564), (4641, 17668), (4998, 16406), (6188, 13251), (7572, 10829), (7644, 10727), (8203, 9996), (8834, 9282)]