221311232

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1$

素因数の和:479

約数の個数: 72

約数和(自身を含む): 463088640

約数和(自身を除く): 241777408

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 79, 124, 128, 158, 248, 256, 316, 353, 496, 632, 706, 992, 1264, 1412, 1984, 2449, 2528, 2824, 3968, 4898, 5056, 5648, 7936, 9796, 10112, 10943, 11296, 19592, 20224, 21886, 22592, 27887, 39184, 43772, 45184, 55774, 78368, 87544, 90368, 111548, 156736, 175088, 223096, 313472, 350176, 446192, 626944, 700352, 864497, 892384, 1400704, 1728994, 1784768, 2801408, 3457988, 3569536, 6915976, 7139072, 13831952, 27663904, 55327808, 110655616, 221311232]

約数ペア:

[(1, 221311232), (2, 110655616), (4, 55327808), (8, 27663904), (16, 13831952), (31, 7139072), (32, 6915976), (62, 3569536), (64, 3457988), (79, 2801408), (124, 1784768), (128, 1728994), (158, 1400704), (248, 892384), (256, 864497), (316, 700352), (353, 626944), (496, 446192), (632, 350176), (706, 313472), (992, 223096), (1264, 175088), (1412, 156736), (1984, 111548), (2449, 90368), (2528, 87544), (2824, 78368), (3968, 55774), (4898, 45184), (5056, 43772), (5648, 39184), (7936, 27887), (9796, 22592), (10112, 21886), (10943, 20224), (11296, 19592)]