28284464

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:478

約数の個数: 80

約数和(自身を含む): 65933280

約数和(自身を除く): 37648816

約数列:

[1, 2, 4, 8, 13, 16, 17, 19, 26, 34, 38, 52, 68, 76, 104, 136, 152, 208, 221, 247, 272, 304, 323, 421, 442, 494, 646, 842, 884, 988, 1292, 1684, 1768, 1976, 2584, 3368, 3536, 3952, 4199, 5168, 5473, 6736, 7157, 7999, 8398, 10946, 14314, 15998, 16796, 21892, 28628, 31996, 33592, 43784, 57256, 63992, 67184, 87568, 93041, 103987, 114512, 127984, 135983, 186082, 207974, 271966, 372164, 415948, 543932, 744328, 831896, 1087864, 1488656, 1663792, 1767779, 2175728, 3535558, 7071116, 14142232, 28284464]

約数ペア:

[(1, 28284464), (2, 14142232), (4, 7071116), (8, 3535558), (13, 2175728), (16, 1767779), (17, 1663792), (19, 1488656), (26, 1087864), (34, 831896), (38, 744328), (52, 543932), (68, 415948), (76, 372164), (104, 271966), (136, 207974), (152, 186082), (208, 135983), (221, 127984), (247, 114512), (272, 103987), (304, 93041), (323, 87568), (421, 67184), (442, 63992), (494, 57256), (646, 43784), (842, 33592), (884, 31996), (988, 28628), (1292, 21892), (1684, 16796), (1768, 15998), (1976, 14314), (2584, 10946), (3368, 8398), (3536, 7999), (3952, 7157), (4199, 6736), (5168, 5473)]