28774620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{557}}^1$

素因数の和:620

約数の個数: 144

約数和(自身を含む): 102368448

約数和(自身を除く): 73593828

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 41, 42, 45, 60, 63, 70, 82, 84, 90, 105, 123, 126, 140, 164, 180, 205, 210, 246, 252, 287, 315, 369, 410, 420, 492, 557, 574, 615, 630, 738, 820, 861, 1114, 1148, 1230, 1260, 1435, 1476, 1671, 1722, 1845, 2228, 2460, 2583, 2785, 2870, 3342, 3444, 3690, 3899, 4305, 5013, 5166, 5570, 5740, 6684, 7380, 7798, 8355, 8610, 10026, 10332, 11140, 11697, 12915, 15596, 16710, 17220, 19495, 20052, 22837, 23394, 25065, 25830, 33420, 35091, 38990, 45674, 46788, 50130, 51660, 58485, 68511, 70182, 77980, 91348, 100260, 114185, 116970, 137022, 140364, 159859, 175455, 205533, 228370, 233940, 274044, 319718, 342555, 350910, 411066, 456740, 479577, 639436, 685110, 701820, 799295, 822132, 959154, 1027665, 1370220, 1438731, 1598590, 1918308, 2055330, 2397885, 2877462, 3197180, 4110660, 4795770, 5754924, 7193655, 9591540, 14387310, 28774620]

約数ペア:

[(1, 28774620), (2, 14387310), (3, 9591540), (4, 7193655), (5, 5754924), (6, 4795770), (7, 4110660), (9, 3197180), (10, 2877462), (12, 2397885), (14, 2055330), (15, 1918308), (18, 1598590), (20, 1438731), (21, 1370220), (28, 1027665), (30, 959154), (35, 822132), (36, 799295), (41, 701820), (42, 685110), (45, 639436), (60, 479577), (63, 456740), (70, 411066), (82, 350910), (84, 342555), (90, 319718), (105, 274044), (123, 233940), (126, 228370), (140, 205533), (164, 175455), (180, 159859), (205, 140364), (210, 137022), (246, 116970), (252, 114185), (287, 100260), (315, 91348), (369, 77980), (410, 70182), (420, 68511), (492, 58485), (557, 51660), (574, 50130), (615, 46788), (630, 45674), (738, 38990), (820, 35091), (861, 33420), (1114, 25830), (1148, 25065), (1230, 23394), (1260, 22837), (1435, 20052), (1476, 19495), (1671, 17220), (1722, 16710), (1845, 15596), (2228, 12915), (2460, 11697), (2583, 11140), (2785, 10332), (2870, 10026), (3342, 8610), (3444, 8355), (3690, 7798), (3899, 7380), (4305, 6684), (5013, 5740), (5166, 5570)]