123991568

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:340

約数の個数: 80

約数和(自身を含む): 266649600

約数和(自身を除く): 142658032

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 59, 62, 76, 118, 124, 152, 223, 236, 248, 304, 446, 472, 496, 589, 892, 944, 1121, 1178, 1784, 1829, 2242, 2356, 3568, 3658, 4237, 4484, 4712, 6913, 7316, 8474, 8968, 9424, 13157, 13826, 14632, 16948, 17936, 26314, 27652, 29264, 33896, 34751, 52628, 55304, 67792, 69502, 105256, 110608, 131347, 139004, 210512, 249983, 262694, 278008, 407867, 499966, 525388, 556016, 815734, 999932, 1050776, 1631468, 1999864, 2101552, 3262936, 3999728, 6525872, 7749473, 15498946, 30997892, 61995784, 123991568]

約数ペア:

[(1, 123991568), (2, 61995784), (4, 30997892), (8, 15498946), (16, 7749473), (19, 6525872), (31, 3999728), (38, 3262936), (59, 2101552), (62, 1999864), (76, 1631468), (118, 1050776), (124, 999932), (152, 815734), (223, 556016), (236, 525388), (248, 499966), (304, 407867), (446, 278008), (472, 262694), (496, 249983), (589, 210512), (892, 139004), (944, 131347), (1121, 110608), (1178, 105256), (1784, 69502), (1829, 67792), (2242, 55304), (2356, 52628), (3568, 34751), (3658, 33896), (4237, 29264), (4484, 27652), (4712, 26314), (6913, 17936), (7316, 16948), (8474, 14632), (8968, 13826), (9424, 13157)]