15953420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:319

約数の個数: 72

約数和(自身を含む): 39682944

約数和(自身を除く): 23729524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 140, 146, 196, 223, 245, 292, 365, 446, 490, 511, 730, 892, 980, 1022, 1115, 1460, 1561, 2044, 2230, 2555, 3122, 3577, 4460, 5110, 6244, 7154, 7805, 10220, 10927, 14308, 15610, 16279, 17885, 21854, 31220, 32558, 35770, 43708, 54635, 65116, 71540, 81395, 109270, 113953, 162790, 218540, 227906, 325580, 455812, 569765, 797671, 1139530, 1595342, 2279060, 3190684, 3988355, 7976710, 15953420]

約数ペア:

[(1, 15953420), (2, 7976710), (4, 3988355), (5, 3190684), (7, 2279060), (10, 1595342), (14, 1139530), (20, 797671), (28, 569765), (35, 455812), (49, 325580), (70, 227906), (73, 218540), (98, 162790), (140, 113953), (146, 109270), (196, 81395), (223, 71540), (245, 65116), (292, 54635), (365, 43708), (446, 35770), (490, 32558), (511, 31220), (730, 21854), (892, 17885), (980, 16279), (1022, 15610), (1115, 14308), (1460, 10927), (1561, 10220), (2044, 7805), (2230, 7154), (2555, 6244), (3122, 5110), (3577, 4460)]