161718872

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{281}}^1$

素因数の和:576

約数の個数: 64

約数和(自身を含む): 357350400

約数和(自身を除く): 195631528

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 239, 281, 301, 344, 478, 562, 602, 956, 1124, 1204, 1673, 1912, 1967, 2248, 2408, 3346, 3934, 6692, 7868, 10277, 12083, 13384, 15736, 20554, 24166, 41108, 48332, 67159, 71939, 82216, 84581, 96664, 134318, 143878, 169162, 268636, 287756, 338324, 470113, 537272, 575512, 676648, 940226, 1880452, 2887837, 3760904, 5775674, 11551348, 20214859, 23102696, 40429718, 80859436, 161718872]

約数ペア:

[(1, 161718872), (2, 80859436), (4, 40429718), (7, 23102696), (8, 20214859), (14, 11551348), (28, 5775674), (43, 3760904), (56, 2887837), (86, 1880452), (172, 940226), (239, 676648), (281, 575512), (301, 537272), (344, 470113), (478, 338324), (562, 287756), (602, 268636), (956, 169162), (1124, 143878), (1204, 134318), (1673, 96664), (1912, 84581), (1967, 82216), (2248, 71939), (2408, 67159), (3346, 48332), (3934, 41108), (6692, 24166), (7868, 20554), (10277, 15736), (12083, 13384)]