78438780

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{6917}}^1$

素因数の和:6945

約数の個数: 120

約数和(自身を含む): 281258208

約数和(自身を除く): 202819428

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 2268, 2835, 3780, 5670, 6917, 11340, 13834, 20751, 27668, 34585, 41502, 48419, 62253, 69170, 83004, 96838, 103755, 124506, 138340, 145257, 186759, 193676, 207510, 242095, 249012, 290514, 311265, 373518, 415020, 435771, 484190, 560277, 581028, 622530, 726285, 747036, 871542, 933795, 968380, 1120554, 1245060, 1307313, 1452570, 1743084, 1867590, 2178855, 2241108, 2614626, 2801385, 2905140, 3735180, 3921939, 4357710, 5229252, 5602770, 6536565, 7843878, 8715420, 11205540, 13073130, 15687756, 19609695, 26146260, 39219390, 78438780]

約数ペア:

[(1, 78438780), (2, 39219390), (3, 26146260), (4, 19609695), (5, 15687756), (6, 13073130), (7, 11205540), (9, 8715420), (10, 7843878), (12, 6536565), (14, 5602770), (15, 5229252), (18, 4357710), (20, 3921939), (21, 3735180), (27, 2905140), (28, 2801385), (30, 2614626), (35, 2241108), (36, 2178855), (42, 1867590), (45, 1743084), (54, 1452570), (60, 1307313), (63, 1245060), (70, 1120554), (81, 968380), (84, 933795), (90, 871542), (105, 747036), (108, 726285), (126, 622530), (135, 581028), (140, 560277), (162, 484190), (180, 435771), (189, 415020), (210, 373518), (252, 311265), (270, 290514), (315, 249012), (324, 242095), (378, 207510), (405, 193676), (420, 186759), (540, 145257), (567, 138340), (630, 124506), (756, 103755), (810, 96838), (945, 83004), (1134, 69170), (1260, 62253), (1620, 48419), (1890, 41502), (2268, 34585), (2835, 27668), (3780, 20751), (5670, 13834), (6917, 11340)]