191997680

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{6997}}^1$

素因数の和:7031

約数の個数: 80

約数和(自身を含む): 520651200

約数和(自身を除く): 328653520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 3430, 3920, 5488, 6860, 6997, 13720, 13994, 27440, 27988, 34985, 48979, 55976, 69970, 97958, 111952, 139940, 195916, 244895, 279880, 342853, 391832, 489790, 559760, 685706, 783664, 979580, 1371412, 1714265, 1959160, 2399971, 2742824, 3428530, 3918320, 4799942, 5485648, 6857060, 9599884, 11999855, 13714120, 19199768, 23999710, 27428240, 38399536, 47999420, 95998840, 191997680]

約数ペア:

[(1, 191997680), (2, 95998840), (4, 47999420), (5, 38399536), (7, 27428240), (8, 23999710), (10, 19199768), (14, 13714120), (16, 11999855), (20, 9599884), (28, 6857060), (35, 5485648), (40, 4799942), (49, 3918320), (56, 3428530), (70, 2742824), (80, 2399971), (98, 1959160), (112, 1714265), (140, 1371412), (196, 979580), (245, 783664), (280, 685706), (343, 559760), (392, 489790), (490, 391832), (560, 342853), (686, 279880), (784, 244895), (980, 195916), (1372, 139940), (1715, 111952), (1960, 97958), (2744, 69970), (3430, 55976), (3920, 48979), (5488, 34985), (6860, 27988), (6997, 27440), (13720, 13994)]