280123280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{733}}^1$

素因数の和:1044

約数の個数: 80

約数和(自身を含む): 692995824

約数和(自身を除く): 412872544

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 281, 340, 562, 680, 733, 1124, 1360, 1405, 1466, 2248, 2810, 2932, 3665, 4496, 4777, 5620, 5864, 7330, 9554, 11240, 11728, 12461, 14660, 19108, 22480, 23885, 24922, 29320, 38216, 47770, 49844, 58640, 62305, 76432, 95540, 99688, 124610, 191080, 199376, 205973, 249220, 382160, 411946, 498440, 823892, 996880, 1029865, 1647784, 2059730, 3295568, 3501541, 4119460, 7003082, 8238920, 14006164, 16477840, 17507705, 28012328, 35015410, 56024656, 70030820, 140061640, 280123280]

約数ペア:

[(1, 280123280), (2, 140061640), (4, 70030820), (5, 56024656), (8, 35015410), (10, 28012328), (16, 17507705), (17, 16477840), (20, 14006164), (34, 8238920), (40, 7003082), (68, 4119460), (80, 3501541), (85, 3295568), (136, 2059730), (170, 1647784), (272, 1029865), (281, 996880), (340, 823892), (562, 498440), (680, 411946), (733, 382160), (1124, 249220), (1360, 205973), (1405, 199376), (1466, 191080), (2248, 124610), (2810, 99688), (2932, 95540), (3665, 76432), (4496, 62305), (4777, 58640), (5620, 49844), (5864, 47770), (7330, 38216), (9554, 29320), (11240, 24922), (11728, 23885), (12461, 22480), (14660, 19108)]