18510100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{853}}^1$

素因数の和:905

約数の個数: 72

約数和(自身を含む): 47441408

約数和(自身を除く): 28931308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 140, 155, 175, 217, 310, 350, 434, 620, 700, 775, 853, 868, 1085, 1550, 1706, 2170, 3100, 3412, 4265, 4340, 5425, 5971, 8530, 10850, 11942, 17060, 21325, 21700, 23884, 26443, 29855, 42650, 52886, 59710, 85300, 105772, 119420, 132215, 149275, 185101, 264430, 298550, 370202, 528860, 597100, 661075, 740404, 925505, 1322150, 1851010, 2644300, 3702020, 4627525, 9255050, 18510100]

約数ペア:

[(1, 18510100), (2, 9255050), (4, 4627525), (5, 3702020), (7, 2644300), (10, 1851010), (14, 1322150), (20, 925505), (25, 740404), (28, 661075), (31, 597100), (35, 528860), (50, 370202), (62, 298550), (70, 264430), (100, 185101), (124, 149275), (140, 132215), (155, 119420), (175, 105772), (217, 85300), (310, 59710), (350, 52886), (434, 42650), (620, 29855), (700, 26443), (775, 23884), (853, 21700), (868, 21325), (1085, 17060), (1550, 11942), (1706, 10850), (2170, 8530), (3100, 5971), (3412, 5425), (4265, 4340)]