18493580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{167}}^1$

素因数の和:303

約数の個数: 72

約数和(自身を含む): 45849888

約数和(自身を除く): 27356308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 113, 140, 167, 196, 226, 245, 334, 452, 490, 565, 668, 791, 835, 980, 1130, 1169, 1582, 1670, 2260, 2338, 3164, 3340, 3955, 4676, 5537, 5845, 7910, 8183, 11074, 11690, 15820, 16366, 18871, 22148, 23380, 27685, 32732, 37742, 40915, 55370, 75484, 81830, 94355, 110740, 132097, 163660, 188710, 264194, 377420, 528388, 660485, 924679, 1320970, 1849358, 2641940, 3698716, 4623395, 9246790, 18493580]

約数ペア:

[(1, 18493580), (2, 9246790), (4, 4623395), (5, 3698716), (7, 2641940), (10, 1849358), (14, 1320970), (20, 924679), (28, 660485), (35, 528388), (49, 377420), (70, 264194), (98, 188710), (113, 163660), (140, 132097), (167, 110740), (196, 94355), (226, 81830), (245, 75484), (334, 55370), (452, 40915), (490, 37742), (565, 32732), (668, 27685), (791, 23380), (835, 22148), (980, 18871), (1130, 16366), (1169, 15820), (1582, 11690), (1670, 11074), (2260, 8183), (2338, 7910), (3164, 5845), (3340, 5537), (3955, 4676)]