644238140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{373}}^1$

素因数の和:488

約数の個数: 144

約数和(自身を含む): 1701741888

約数和(自身を除く): 1057503748

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 73, 91, 130, 140, 146, 169, 182, 260, 292, 338, 364, 365, 373, 455, 511, 676, 730, 746, 845, 910, 949, 1022, 1183, 1460, 1492, 1690, 1820, 1865, 1898, 2044, 2366, 2555, 2611, 3380, 3730, 3796, 4732, 4745, 4849, 5110, 5222, 5915, 6643, 7460, 9490, 9698, 10220, 10444, 11830, 12337, 13055, 13286, 18980, 19396, 23660, 24245, 24674, 26110, 26572, 27229, 33215, 33943, 48490, 49348, 52220, 54458, 61685, 63037, 66430, 67886, 86359, 96980, 108916, 123370, 126074, 132860, 135772, 136145, 169715, 172718, 190603, 246740, 252148, 272290, 315185, 339430, 345436, 353977, 381206, 431795, 441259, 544580, 630370, 678860, 707954, 762412, 863590, 882518, 953015, 1260740, 1415908, 1727180, 1765036, 1769885, 1906030, 2206295, 2477839, 3539770, 3812060, 4412590, 4601701, 4955678, 7079540, 8825180, 9203402, 9911356, 12389195, 18406804, 23008505, 24778390, 32211907, 46017010, 49556780, 64423814, 92034020, 128847628, 161059535, 322119070, 644238140]

約数ペア:

[(1, 644238140), (2, 322119070), (4, 161059535), (5, 128847628), (7, 92034020), (10, 64423814), (13, 49556780), (14, 46017010), (20, 32211907), (26, 24778390), (28, 23008505), (35, 18406804), (52, 12389195), (65, 9911356), (70, 9203402), (73, 8825180), (91, 7079540), (130, 4955678), (140, 4601701), (146, 4412590), (169, 3812060), (182, 3539770), (260, 2477839), (292, 2206295), (338, 1906030), (364, 1769885), (365, 1765036), (373, 1727180), (455, 1415908), (511, 1260740), (676, 953015), (730, 882518), (746, 863590), (845, 762412), (910, 707954), (949, 678860), (1022, 630370), (1183, 544580), (1460, 441259), (1492, 431795), (1690, 381206), (1820, 353977), (1865, 345436), (1898, 339430), (2044, 315185), (2366, 272290), (2555, 252148), (2611, 246740), (3380, 190603), (3730, 172718), (3796, 169715), (4732, 136145), (4745, 135772), (4849, 132860), (5110, 126074), (5222, 123370), (5915, 108916), (6643, 96980), (7460, 86359), (9490, 67886), (9698, 66430), (10220, 63037), (10444, 61685), (11830, 54458), (12337, 52220), (13055, 49348), (13286, 48490), (18980, 33943), (19396, 33215), (23660, 27229), (24245, 26572), (24674, 26110)]