23121280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:436

約数の個数: 128

約数和(自身を含む): 68201280

約数和(自身を除く): 45080000

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 397, 416, 448, 455, 520, 560, 640, 728, 794, 832, 896, 910, 1040, 1120, 1456, 1588, 1664, 1820, 1985, 2080, 2240, 2779, 2912, 3176, 3640, 3970, 4160, 4480, 5161, 5558, 5824, 6352, 7280, 7940, 8320, 10322, 11116, 11648, 12704, 13895, 14560, 15880, 20644, 22232, 25408, 25805, 27790, 29120, 31760, 36127, 41288, 44464, 50816, 51610, 55580, 58240, 63520, 72254, 82576, 88928, 103220, 111160, 127040, 144508, 165152, 177856, 180635, 206440, 222320, 254080, 289016, 330304, 355712, 361270, 412880, 444640, 578032, 660608, 722540, 825760, 889280, 1156064, 1445080, 1651520, 1778560, 2312128, 2890160, 3303040, 4624256, 5780320, 11560640, 23121280]

約数ペア:

[(1, 23121280), (2, 11560640), (4, 5780320), (5, 4624256), (7, 3303040), (8, 2890160), (10, 2312128), (13, 1778560), (14, 1651520), (16, 1445080), (20, 1156064), (26, 889280), (28, 825760), (32, 722540), (35, 660608), (40, 578032), (52, 444640), (56, 412880), (64, 361270), (65, 355712), (70, 330304), (80, 289016), (91, 254080), (104, 222320), (112, 206440), (128, 180635), (130, 177856), (140, 165152), (160, 144508), (182, 127040), (208, 111160), (224, 103220), (260, 88928), (280, 82576), (320, 72254), (364, 63520), (397, 58240), (416, 55580), (448, 51610), (455, 50816), (520, 44464), (560, 41288), (640, 36127), (728, 31760), (794, 29120), (832, 27790), (896, 25805), (910, 25408), (1040, 22232), (1120, 20644), (1456, 15880), (1588, 14560), (1664, 13895), (1820, 12704), (1985, 11648), (2080, 11116), (2240, 10322), (2779, 8320), (2912, 7940), (3176, 7280), (3640, 6352), (3970, 5824), (4160, 5558), (4480, 5161)]