18192640

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 44481528

約数和(自身を除く): 26288888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 233, 244, 256, 305, 320, 466, 488, 610, 640, 932, 976, 1165, 1220, 1280, 1864, 1952, 2330, 2440, 3728, 3904, 4660, 4880, 7456, 7808, 9320, 9760, 14213, 14912, 15616, 18640, 19520, 28426, 29824, 37280, 39040, 56852, 59648, 71065, 74560, 78080, 113704, 142130, 149120, 227408, 284260, 298240, 454816, 568520, 909632, 1137040, 1819264, 2274080, 3638528, 4548160, 9096320, 18192640]

約数ペア:

[(1, 18192640), (2, 9096320), (4, 4548160), (5, 3638528), (8, 2274080), (10, 1819264), (16, 1137040), (20, 909632), (32, 568520), (40, 454816), (61, 298240), (64, 284260), (80, 227408), (122, 149120), (128, 142130), (160, 113704), (233, 78080), (244, 74560), (256, 71065), (305, 59648), (320, 56852), (466, 39040), (488, 37280), (610, 29824), (640, 28426), (932, 19520), (976, 18640), (1165, 15616), (1220, 14912), (1280, 14213), (1864, 9760), (1952, 9320), (2330, 7808), (2440, 7456), (3728, 4880), (3904, 4660)]