280967512

素因数分解:

$2^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:536

約数の個数: 64

約数和(自身を含む): 612864000

約数和(自身を除く): 331896488

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 149, 151, 223, 298, 302, 446, 596, 604, 892, 1043, 1057, 1192, 1208, 1561, 1784, 2086, 2114, 3122, 4172, 4228, 6244, 8344, 8456, 12488, 22499, 33227, 33673, 44998, 66454, 67346, 89996, 132908, 134692, 157493, 179992, 232589, 235711, 265816, 269384, 314986, 465178, 471422, 629972, 930356, 942844, 1259944, 1860712, 1885688, 5017277, 10034554, 20069108, 35120939, 40138216, 70241878, 140483756, 280967512]

約数ペア:

[(1, 280967512), (2, 140483756), (4, 70241878), (7, 40138216), (8, 35120939), (14, 20069108), (28, 10034554), (56, 5017277), (149, 1885688), (151, 1860712), (223, 1259944), (298, 942844), (302, 930356), (446, 629972), (596, 471422), (604, 465178), (892, 314986), (1043, 269384), (1057, 265816), (1192, 235711), (1208, 232589), (1561, 179992), (1784, 157493), (2086, 134692), (2114, 132908), (3122, 89996), (4172, 67346), (4228, 66454), (6244, 44998), (8344, 33673), (8456, 33227), (12488, 22499)]