28462720

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1$

素因数の和:354

約数の個数: 128

約数和(自身を含む): 80196480

約数和(自身を除く): 51733760

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 110, 128, 130, 143, 160, 176, 208, 220, 260, 286, 311, 320, 352, 416, 440, 520, 572, 622, 640, 704, 715, 832, 880, 1040, 1144, 1244, 1408, 1430, 1555, 1664, 1760, 2080, 2288, 2488, 2860, 3110, 3421, 3520, 4043, 4160, 4576, 4976, 5720, 6220, 6842, 7040, 8086, 8320, 9152, 9952, 11440, 12440, 13684, 16172, 17105, 18304, 19904, 20215, 22880, 24880, 27368, 32344, 34210, 39808, 40430, 44473, 45760, 49760, 54736, 64688, 68420, 80860, 88946, 91520, 99520, 109472, 129376, 136840, 161720, 177892, 199040, 218944, 222365, 258752, 273680, 323440, 355784, 437888, 444730, 517504, 547360, 646880, 711568, 889460, 1094720, 1293760, 1423136, 1778920, 2189440, 2587520, 2846272, 3557840, 5692544, 7115680, 14231360, 28462720]

約数ペア:

[(1, 28462720), (2, 14231360), (4, 7115680), (5, 5692544), (8, 3557840), (10, 2846272), (11, 2587520), (13, 2189440), (16, 1778920), (20, 1423136), (22, 1293760), (26, 1094720), (32, 889460), (40, 711568), (44, 646880), (52, 547360), (55, 517504), (64, 444730), (65, 437888), (80, 355784), (88, 323440), (104, 273680), (110, 258752), (128, 222365), (130, 218944), (143, 199040), (160, 177892), (176, 161720), (208, 136840), (220, 129376), (260, 109472), (286, 99520), (311, 91520), (320, 88946), (352, 80860), (416, 68420), (440, 64688), (520, 54736), (572, 49760), (622, 45760), (640, 44473), (704, 40430), (715, 39808), (832, 34210), (880, 32344), (1040, 27368), (1144, 24880), (1244, 22880), (1408, 20215), (1430, 19904), (1555, 18304), (1664, 17105), (1760, 16172), (2080, 13684), (2288, 12440), (2488, 11440), (2860, 9952), (3110, 9152), (3421, 8320), (3520, 8086), (4043, 7040), (4160, 6842), (4576, 6220), (4976, 5720)]