172389140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:238

約数の個数: 192

約数和(自身を含む): 489259008

約数和(自身を除く): 316869868

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 23, 28, 31, 35, 44, 46, 55, 62, 70, 77, 92, 110, 115, 124, 140, 154, 155, 157, 161, 217, 220, 230, 253, 308, 310, 314, 322, 341, 385, 434, 460, 506, 620, 628, 644, 682, 713, 770, 785, 805, 868, 1012, 1085, 1099, 1265, 1364, 1426, 1540, 1570, 1610, 1705, 1727, 1771, 2170, 2198, 2387, 2530, 2852, 3140, 3220, 3410, 3454, 3542, 3565, 3611, 4340, 4396, 4774, 4867, 4991, 5060, 5495, 6820, 6908, 7084, 7130, 7222, 7843, 8635, 8855, 9548, 9734, 9982, 10990, 11935, 12089, 14260, 14444, 15686, 17270, 17710, 18055, 19468, 19964, 21980, 23870, 24178, 24335, 24955, 25277, 31372, 34069, 34540, 35420, 36110, 39215, 39721, 47740, 48356, 48670, 49910, 50554, 53537, 54901, 60445, 68138, 72220, 78430, 79442, 97340, 99820, 101108, 107074, 109802, 111941, 120890, 126385, 136276, 156860, 158884, 170345, 198605, 214148, 219604, 223882, 241780, 252770, 267685, 274505, 278047, 340690, 374759, 397210, 447764, 505540, 535370, 549010, 556094, 559705, 681380, 749518, 783587, 794420, 1070740, 1098020, 1112188, 1119410, 1231351, 1390235, 1499036, 1567174, 1873795, 2238820, 2462702, 2780470, 3134348, 3747590, 3917935, 4925404, 5560940, 6156755, 7495180, 7835870, 8619457, 12313510, 15671740, 17238914, 24627020, 34477828, 43097285, 86194570, 172389140]

約数ペア:

[(1, 172389140), (2, 86194570), (4, 43097285), (5, 34477828), (7, 24627020), (10, 17238914), (11, 15671740), (14, 12313510), (20, 8619457), (22, 7835870), (23, 7495180), (28, 6156755), (31, 5560940), (35, 4925404), (44, 3917935), (46, 3747590), (55, 3134348), (62, 2780470), (70, 2462702), (77, 2238820), (92, 1873795), (110, 1567174), (115, 1499036), (124, 1390235), (140, 1231351), (154, 1119410), (155, 1112188), (157, 1098020), (161, 1070740), (217, 794420), (220, 783587), (230, 749518), (253, 681380), (308, 559705), (310, 556094), (314, 549010), (322, 535370), (341, 505540), (385, 447764), (434, 397210), (460, 374759), (506, 340690), (620, 278047), (628, 274505), (644, 267685), (682, 252770), (713, 241780), (770, 223882), (785, 219604), (805, 214148), (868, 198605), (1012, 170345), (1085, 158884), (1099, 156860), (1265, 136276), (1364, 126385), (1426, 120890), (1540, 111941), (1570, 109802), (1610, 107074), (1705, 101108), (1727, 99820), (1771, 97340), (2170, 79442), (2198, 78430), (2387, 72220), (2530, 68138), (2852, 60445), (3140, 54901), (3220, 53537), (3410, 50554), (3454, 49910), (3542, 48670), (3565, 48356), (3611, 47740), (4340, 39721), (4396, 39215), (4774, 36110), (4867, 35420), (4991, 34540), (5060, 34069), (5495, 31372), (6820, 25277), (6908, 24955), (7084, 24335), (7130, 24178), (7222, 23870), (7843, 21980), (8635, 19964), (8855, 19468), (9548, 18055), (9734, 17710), (9982, 17270), (10990, 15686), (11935, 14444), (12089, 14260)]