181456640

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:338

約数の個数: 144

約数和(自身を含む): 476824320

約数和(自身を除く): 295367680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 85, 124, 128, 136, 155, 160, 170, 248, 256, 269, 272, 310, 320, 340, 496, 527, 538, 544, 620, 640, 680, 992, 1054, 1076, 1088, 1240, 1280, 1345, 1360, 1984, 2108, 2152, 2176, 2480, 2635, 2690, 2720, 3968, 4216, 4304, 4352, 4573, 4960, 5270, 5380, 5440, 7936, 8339, 8432, 8608, 9146, 9920, 10540, 10760, 10880, 16678, 16864, 17216, 18292, 19840, 21080, 21520, 21760, 22865, 33356, 33728, 34432, 36584, 39680, 41695, 42160, 43040, 45730, 66712, 67456, 68864, 73168, 83390, 84320, 86080, 91460, 133424, 134912, 141763, 146336, 166780, 168640, 172160, 182920, 266848, 283526, 292672, 333560, 337280, 344320, 365840, 533696, 567052, 585344, 667120, 674560, 708815, 731680, 1067392, 1134104, 1170688, 1334240, 1417630, 1463360, 2134784, 2268208, 2668480, 2835260, 2926720, 4536416, 5336960, 5670520, 5853440, 9072832, 10673920, 11341040, 18145664, 22682080, 36291328, 45364160, 90728320, 181456640]

約数ペア:

[(1, 181456640), (2, 90728320), (4, 45364160), (5, 36291328), (8, 22682080), (10, 18145664), (16, 11341040), (17, 10673920), (20, 9072832), (31, 5853440), (32, 5670520), (34, 5336960), (40, 4536416), (62, 2926720), (64, 2835260), (68, 2668480), (80, 2268208), (85, 2134784), (124, 1463360), (128, 1417630), (136, 1334240), (155, 1170688), (160, 1134104), (170, 1067392), (248, 731680), (256, 708815), (269, 674560), (272, 667120), (310, 585344), (320, 567052), (340, 533696), (496, 365840), (527, 344320), (538, 337280), (544, 333560), (620, 292672), (640, 283526), (680, 266848), (992, 182920), (1054, 172160), (1076, 168640), (1088, 166780), (1240, 146336), (1280, 141763), (1345, 134912), (1360, 133424), (1984, 91460), (2108, 86080), (2152, 84320), (2176, 83390), (2480, 73168), (2635, 68864), (2690, 67456), (2720, 66712), (3968, 45730), (4216, 43040), (4304, 42160), (4352, 41695), (4573, 39680), (4960, 36584), (5270, 34432), (5380, 33728), (5440, 33356), (7936, 22865), (8339, 21760), (8432, 21520), (8608, 21080), (9146, 19840), (9920, 18292), (10540, 17216), (10760, 16864), (10880, 16678)]