259201720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{16573}}^1$

素因数の和:16624

約数の個数: 64

約数和(自身を含む): 644397120

約数和(自身を除く): 385195400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 34, 40, 46, 68, 85, 92, 115, 136, 170, 184, 230, 340, 391, 460, 680, 782, 920, 1564, 1955, 3128, 3910, 7820, 15640, 16573, 33146, 66292, 82865, 132584, 165730, 281741, 331460, 381179, 563482, 662920, 762358, 1126964, 1408705, 1524716, 1905895, 2253928, 2817410, 3049432, 3811790, 5634820, 6480043, 7623580, 11269640, 12960086, 15247160, 25920172, 32400215, 51840344, 64800430, 129600860, 259201720]

約数ペア:

[(1, 259201720), (2, 129600860), (4, 64800430), (5, 51840344), (8, 32400215), (10, 25920172), (17, 15247160), (20, 12960086), (23, 11269640), (34, 7623580), (40, 6480043), (46, 5634820), (68, 3811790), (85, 3049432), (92, 2817410), (115, 2253928), (136, 1905895), (170, 1524716), (184, 1408705), (230, 1126964), (340, 762358), (391, 662920), (460, 563482), (680, 381179), (782, 331460), (920, 281741), (1564, 165730), (1955, 132584), (3128, 82865), (3910, 66292), (7820, 33146), (15640, 16573)]