15705320

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 37825920

約数和(自身を除く): 22120600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 215, 230, 344, 397, 430, 460, 794, 860, 920, 989, 1588, 1720, 1978, 1985, 3176, 3956, 3970, 4945, 7912, 7940, 9131, 9890, 15880, 17071, 18262, 19780, 34142, 36524, 39560, 45655, 68284, 73048, 85355, 91310, 136568, 170710, 182620, 341420, 365240, 392633, 682840, 785266, 1570532, 1963165, 3141064, 3926330, 7852660, 15705320]

約数ペア:

[(1, 15705320), (2, 7852660), (4, 3926330), (5, 3141064), (8, 1963165), (10, 1570532), (20, 785266), (23, 682840), (40, 392633), (43, 365240), (46, 341420), (86, 182620), (92, 170710), (115, 136568), (172, 91310), (184, 85355), (215, 73048), (230, 68284), (344, 45655), (397, 39560), (430, 36524), (460, 34142), (794, 19780), (860, 18262), (920, 17071), (989, 15880), (1588, 9890), (1720, 9131), (1978, 7940), (1985, 7912), (3176, 4945), (3956, 3970)]