28875520

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1327}}^1$

素因数の和:1365

約数の個数: 72

約数和(自身を含む): 73289664

約数和(自身を除く): 44414144

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 1088, 1280, 1327, 1360, 2176, 2654, 2720, 4352, 5308, 5440, 6635, 10616, 10880, 13270, 21232, 21760, 22559, 26540, 42464, 45118, 53080, 84928, 90236, 106160, 112795, 169856, 180472, 212320, 225590, 339712, 360944, 424640, 451180, 721888, 849280, 902360, 1443776, 1698560, 1804720, 2887552, 3609440, 5775104, 7218880, 14437760, 28875520]

約数ペア:

[(1, 28875520), (2, 14437760), (4, 7218880), (5, 5775104), (8, 3609440), (10, 2887552), (16, 1804720), (17, 1698560), (20, 1443776), (32, 902360), (34, 849280), (40, 721888), (64, 451180), (68, 424640), (80, 360944), (85, 339712), (128, 225590), (136, 212320), (160, 180472), (170, 169856), (256, 112795), (272, 106160), (320, 90236), (340, 84928), (544, 53080), (640, 45118), (680, 42464), (1088, 26540), (1280, 22559), (1327, 21760), (1360, 21232), (2176, 13270), (2654, 10880), (2720, 10616), (4352, 6635), (5308, 5440)]