7999740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{907}}^1$

素因数の和:936

約数の個数: 108

約数和(自身を含む): 28258776

約数和(自身を除く): 20259036

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 907, 980, 1260, 1470, 1764, 1814, 2205, 2721, 2940, 3628, 4410, 4535, 5442, 6349, 8163, 8820, 9070, 10884, 12698, 13605, 16326, 18140, 19047, 25396, 27210, 31745, 32652, 38094, 40815, 44443, 54420, 57141, 63490, 76188, 81630, 88886, 95235, 114282, 126980, 133329, 163260, 177772, 190470, 222215, 228564, 266658, 285705, 380940, 399987, 444430, 533316, 571410, 666645, 799974, 888860, 1142820, 1333290, 1599948, 1999935, 2666580, 3999870, 7999740]

約数ペア:

[(1, 7999740), (2, 3999870), (3, 2666580), (4, 1999935), (5, 1599948), (6, 1333290), (7, 1142820), (9, 888860), (10, 799974), (12, 666645), (14, 571410), (15, 533316), (18, 444430), (20, 399987), (21, 380940), (28, 285705), (30, 266658), (35, 228564), (36, 222215), (42, 190470), (45, 177772), (49, 163260), (60, 133329), (63, 126980), (70, 114282), (84, 95235), (90, 88886), (98, 81630), (105, 76188), (126, 63490), (140, 57141), (147, 54420), (180, 44443), (196, 40815), (210, 38094), (245, 32652), (252, 31745), (294, 27210), (315, 25396), (420, 19047), (441, 18140), (490, 16326), (588, 13605), (630, 12698), (735, 10884), (882, 9070), (907, 8820), (980, 8163), (1260, 6349), (1470, 5442), (1764, 4535), (1814, 4410), (2205, 3628), (2721, 2940)]