18218560

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^2\times {\mathrm{197}}^1$

素因数の和:248

約数の個数: 84

約数和(自身を含む): 46318932

約数和(自身を除く): 28100372

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 197, 272, 289, 320, 340, 394, 544, 578, 680, 788, 985, 1088, 1156, 1360, 1445, 1576, 1970, 2312, 2720, 2890, 3152, 3349, 3940, 4624, 5440, 5780, 6304, 6698, 7880, 9248, 11560, 12608, 13396, 15760, 16745, 18496, 23120, 26792, 31520, 33490, 46240, 53584, 56933, 63040, 66980, 92480, 107168, 113866, 133960, 214336, 227732, 267920, 284665, 455464, 535840, 569330, 910928, 1071680, 1138660, 1821856, 2277320, 3643712, 4554640, 9109280, 18218560]

約数ペア:

[(1, 18218560), (2, 9109280), (4, 4554640), (5, 3643712), (8, 2277320), (10, 1821856), (16, 1138660), (17, 1071680), (20, 910928), (32, 569330), (34, 535840), (40, 455464), (64, 284665), (68, 267920), (80, 227732), (85, 214336), (136, 133960), (160, 113866), (170, 107168), (197, 92480), (272, 66980), (289, 63040), (320, 56933), (340, 53584), (394, 46240), (544, 33490), (578, 31520), (680, 26792), (788, 23120), (985, 18496), (1088, 16745), (1156, 15760), (1360, 13396), (1445, 12608), (1576, 11560), (1970, 9248), (2312, 7880), (2720, 6698), (2890, 6304), (3152, 5780), (3349, 5440), (3940, 4624)]