28867860

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{1091}}^1$

素因数の和:1123

約数の個数: 144

約数和(自身を含む): 104569920

約数和(自身を除く): 75702060

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, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 882, 945, 980, 1091, 1260, 1323, 1470, 1764, 1890, 2182, 2205, 2646, 2940, 3273, 3780, 4364, 4410, 5292, 5455, 6546, 6615, 7637, 8820, 9819, 10910, 13092, 13230, 15274, 16365, 19638, 21820, 22911, 26460, 29457, 30548, 32730, 38185, 39276, 45822, 49095, 53459, 58914, 65460, 68733, 76370, 91644, 98190, 106918, 114555, 117828, 137466, 147285, 152740, 160377, 196380, 206199, 213836, 229110, 267295, 274932, 294570, 320754, 343665, 412398, 458220, 481131, 534590, 589140, 641508, 687330, 801885, 824796, 962262, 1030995, 1069180, 1374660, 1443393, 1603770, 1924524, 2061990, 2405655, 2886786, 3207540, 4123980, 4811310, 5773572, 7216965, 9622620, 14433930, 28867860]

約数ペア:

[(1, 28867860), (2, 14433930), (3, 9622620), (4, 7216965), (5, 5773572), (6, 4811310), (7, 4123980), (9, 3207540), (10, 2886786), (12, 2405655), (14, 2061990), (15, 1924524), (18, 1603770), (20, 1443393), (21, 1374660), (27, 1069180), (28, 1030995), (30, 962262), (35, 824796), (36, 801885), (42, 687330), (45, 641508), (49, 589140), (54, 534590), (60, 481131), (63, 458220), (70, 412398), (84, 343665), (90, 320754), (98, 294570), (105, 274932), (108, 267295), (126, 229110), (135, 213836), (140, 206199), (147, 196380), (180, 160377), (189, 152740), (196, 147285), (210, 137466), (245, 117828), (252, 114555), (270, 106918), (294, 98190), (315, 91644), (378, 76370), (420, 68733), (441, 65460), (490, 58914), (540, 53459), (588, 49095), (630, 45822), (735, 39276), (756, 38185), (882, 32730), (945, 30548), (980, 29457), (1091, 26460), (1260, 22911), (1323, 21820), (1470, 19638), (1764, 16365), (1890, 15274), (2182, 13230), (2205, 13092), (2646, 10910), (2940, 9819), (3273, 8820), (3780, 7637), (4364, 6615), (4410, 6546), (5292, 5455)]