18432640

素因数分解:

$2^7\times 5^1\times {\mathrm{83}}^1\times {\mathrm{347}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 44724960

約数和(自身を除く): 26292320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 128, 160, 166, 320, 332, 347, 415, 640, 664, 694, 830, 1328, 1388, 1660, 1735, 2656, 2776, 3320, 3470, 5312, 5552, 6640, 6940, 10624, 11104, 13280, 13880, 22208, 26560, 27760, 28801, 44416, 53120, 55520, 57602, 111040, 115204, 144005, 222080, 230408, 288010, 460816, 576020, 921632, 1152040, 1843264, 2304080, 3686528, 4608160, 9216320, 18432640]

約数ペア:

[(1, 18432640), (2, 9216320), (4, 4608160), (5, 3686528), (8, 2304080), (10, 1843264), (16, 1152040), (20, 921632), (32, 576020), (40, 460816), (64, 288010), (80, 230408), (83, 222080), (128, 144005), (160, 115204), (166, 111040), (320, 57602), (332, 55520), (347, 53120), (415, 44416), (640, 28801), (664, 27760), (694, 26560), (830, 22208), (1328, 13880), (1388, 13280), (1660, 11104), (1735, 10624), (2656, 6940), (2776, 6640), (3320, 5552), (3470, 5312)]