80101280

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{601}}^1$

素因数の和:647

約数の個数: 144

約数和(自身を含む): 233472456

約数和(自身を除く): 153371176

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 140, 160, 170, 196, 224, 238, 245, 272, 280, 340, 392, 476, 490, 544, 560, 595, 601, 680, 784, 833, 952, 980, 1120, 1190, 1202, 1360, 1568, 1666, 1904, 1960, 2380, 2404, 2720, 3005, 3332, 3808, 3920, 4165, 4207, 4760, 4808, 6010, 6664, 7840, 8330, 8414, 9520, 9616, 10217, 12020, 13328, 16660, 16828, 19040, 19232, 20434, 21035, 24040, 26656, 29449, 33320, 33656, 40868, 42070, 48080, 51085, 58898, 66640, 67312, 71519, 81736, 84140, 96160, 102170, 117796, 133280, 134624, 143038, 147245, 163472, 168280, 204340, 235592, 286076, 294490, 326944, 336560, 357595, 408680, 471184, 500633, 572152, 588980, 673120, 715190, 817360, 942368, 1001266, 1144304, 1177960, 1430380, 1634720, 2002532, 2288608, 2355920, 2503165, 2860760, 4005064, 4711840, 5006330, 5721520, 8010128, 10012660, 11443040, 16020256, 20025320, 40050640, 80101280]

約数ペア:

[(1, 80101280), (2, 40050640), (4, 20025320), (5, 16020256), (7, 11443040), (8, 10012660), (10, 8010128), (14, 5721520), (16, 5006330), (17, 4711840), (20, 4005064), (28, 2860760), (32, 2503165), (34, 2355920), (35, 2288608), (40, 2002532), (49, 1634720), (56, 1430380), (68, 1177960), (70, 1144304), (80, 1001266), (85, 942368), (98, 817360), (112, 715190), (119, 673120), (136, 588980), (140, 572152), (160, 500633), (170, 471184), (196, 408680), (224, 357595), (238, 336560), (245, 326944), (272, 294490), (280, 286076), (340, 235592), (392, 204340), (476, 168280), (490, 163472), (544, 147245), (560, 143038), (595, 134624), (601, 133280), (680, 117796), (784, 102170), (833, 96160), (952, 84140), (980, 81736), (1120, 71519), (1190, 67312), (1202, 66640), (1360, 58898), (1568, 51085), (1666, 48080), (1904, 42070), (1960, 40868), (2380, 33656), (2404, 33320), (2720, 29449), (3005, 26656), (3332, 24040), (3808, 21035), (3920, 20434), (4165, 19232), (4207, 19040), (4760, 16828), (4808, 16660), (6010, 13328), (6664, 12020), (7840, 10217), (8330, 9616), (8414, 9520)]