28624640

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:158

約数の個数: 144

約数和(自身を含む): 79470720

約数和(自身を除く): 50846080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 64, 76, 80, 88, 95, 107, 110, 128, 152, 160, 176, 190, 209, 214, 220, 256, 304, 320, 352, 380, 418, 428, 440, 535, 608, 640, 704, 760, 836, 856, 880, 1045, 1070, 1177, 1216, 1280, 1408, 1520, 1672, 1712, 1760, 2033, 2090, 2140, 2354, 2432, 2816, 3040, 3344, 3424, 3520, 4066, 4180, 4280, 4708, 4864, 5885, 6080, 6688, 6848, 7040, 8132, 8360, 8560, 9416, 10165, 11770, 12160, 13376, 13696, 14080, 16264, 16720, 17120, 18832, 20330, 22363, 23540, 24320, 26752, 27392, 32528, 33440, 34240, 37664, 40660, 44726, 47080, 53504, 65056, 66880, 68480, 75328, 81320, 89452, 94160, 111815, 130112, 133760, 136960, 150656, 162640, 178904, 188320, 223630, 260224, 267520, 301312, 325280, 357808, 376640, 447260, 520448, 650560, 715616, 753280, 894520, 1301120, 1431232, 1506560, 1789040, 2602240, 2862464, 3578080, 5724928, 7156160, 14312320, 28624640]

約数ペア:

[(1, 28624640), (2, 14312320), (4, 7156160), (5, 5724928), (8, 3578080), (10, 2862464), (11, 2602240), (16, 1789040), (19, 1506560), (20, 1431232), (22, 1301120), (32, 894520), (38, 753280), (40, 715616), (44, 650560), (55, 520448), (64, 447260), (76, 376640), (80, 357808), (88, 325280), (95, 301312), (107, 267520), (110, 260224), (128, 223630), (152, 188320), (160, 178904), (176, 162640), (190, 150656), (209, 136960), (214, 133760), (220, 130112), (256, 111815), (304, 94160), (320, 89452), (352, 81320), (380, 75328), (418, 68480), (428, 66880), (440, 65056), (535, 53504), (608, 47080), (640, 44726), (704, 40660), (760, 37664), (836, 34240), (856, 33440), (880, 32528), (1045, 27392), (1070, 26752), (1177, 24320), (1216, 23540), (1280, 22363), (1408, 20330), (1520, 18832), (1672, 17120), (1712, 16720), (1760, 16264), (2033, 14080), (2090, 13696), (2140, 13376), (2354, 12160), (2432, 11770), (2816, 10165), (3040, 9416), (3344, 8560), (3424, 8360), (3520, 8132), (4066, 7040), (4180, 6848), (4280, 6688), (4708, 6080), (4864, 5885)]