18158720

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1669}}^1$

素因数の和:1705

約数の個数: 64

約数和(自身を含む): 45991800

約数和(自身を除く): 27833080

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 1669, 2176, 2720, 3338, 5440, 6676, 8345, 10880, 13352, 16690, 26704, 28373, 33380, 53408, 56746, 66760, 106816, 113492, 133520, 141865, 213632, 226984, 267040, 283730, 453968, 534080, 567460, 907936, 1068160, 1134920, 1815872, 2269840, 3631744, 4539680, 9079360, 18158720]

約数ペア:

[(1, 18158720), (2, 9079360), (4, 4539680), (5, 3631744), (8, 2269840), (10, 1815872), (16, 1134920), (17, 1068160), (20, 907936), (32, 567460), (34, 534080), (40, 453968), (64, 283730), (68, 267040), (80, 226984), (85, 213632), (128, 141865), (136, 133520), (160, 113492), (170, 106816), (272, 66760), (320, 56746), (340, 53408), (544, 33380), (640, 28373), (680, 26704), (1088, 16690), (1360, 13352), (1669, 10880), (2176, 8345), (2720, 6676), (3338, 5440)]