639774660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{701}}^1$

素因数の和:814

約数の個数: 192

約数和(自身を含む): 2139830784

約数和(自身を除く): 1500056124

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 41, 42, 53, 60, 70, 82, 84, 105, 106, 123, 140, 159, 164, 205, 210, 212, 246, 265, 287, 318, 371, 410, 420, 492, 530, 574, 615, 636, 701, 742, 795, 820, 861, 1060, 1113, 1148, 1230, 1402, 1435, 1484, 1590, 1722, 1855, 2103, 2173, 2226, 2460, 2804, 2870, 3180, 3444, 3505, 3710, 4206, 4305, 4346, 4452, 4907, 5565, 5740, 6519, 7010, 7420, 8412, 8610, 8692, 9814, 10515, 10865, 11130, 13038, 14020, 14721, 15211, 17220, 19628, 21030, 21730, 22260, 24535, 26076, 28741, 29442, 30422, 32595, 37153, 42060, 43460, 45633, 49070, 57482, 58884, 60844, 65190, 73605, 74306, 76055, 86223, 91266, 98140, 111459, 114964, 130380, 143705, 147210, 148612, 152110, 172446, 182532, 185765, 201187, 222918, 228165, 260071, 287410, 294420, 304220, 344892, 371530, 402374, 431115, 445836, 456330, 520142, 557295, 574820, 603561, 743060, 780213, 804748, 862230, 912660, 1005935, 1040284, 1114590, 1207122, 1300355, 1523273, 1560426, 1724460, 2011870, 2229180, 2414244, 2600710, 3017805, 3046546, 3120852, 3901065, 4023740, 4569819, 5201420, 6035610, 6093092, 7616365, 7802130, 9139638, 10662911, 12071220, 15232730, 15604260, 18279276, 21325822, 22849095, 30465460, 31988733, 42651644, 45698190, 53314555, 63977466, 91396380, 106629110, 127954932, 159943665, 213258220, 319887330, 639774660]

約数ペア:

[(1, 639774660), (2, 319887330), (3, 213258220), (4, 159943665), (5, 127954932), (6, 106629110), (7, 91396380), (10, 63977466), (12, 53314555), (14, 45698190), (15, 42651644), (20, 31988733), (21, 30465460), (28, 22849095), (30, 21325822), (35, 18279276), (41, 15604260), (42, 15232730), (53, 12071220), (60, 10662911), (70, 9139638), (82, 7802130), (84, 7616365), (105, 6093092), (106, 6035610), (123, 5201420), (140, 4569819), (159, 4023740), (164, 3901065), (205, 3120852), (210, 3046546), (212, 3017805), (246, 2600710), (265, 2414244), (287, 2229180), (318, 2011870), (371, 1724460), (410, 1560426), (420, 1523273), (492, 1300355), (530, 1207122), (574, 1114590), (615, 1040284), (636, 1005935), (701, 912660), (742, 862230), (795, 804748), (820, 780213), (861, 743060), (1060, 603561), (1113, 574820), (1148, 557295), (1230, 520142), (1402, 456330), (1435, 445836), (1484, 431115), (1590, 402374), (1722, 371530), (1855, 344892), (2103, 304220), (2173, 294420), (2226, 287410), (2460, 260071), (2804, 228165), (2870, 222918), (3180, 201187), (3444, 185765), (3505, 182532), (3710, 172446), (4206, 152110), (4305, 148612), (4346, 147210), (4452, 143705), (4907, 130380), (5565, 114964), (5740, 111459), (6519, 98140), (7010, 91266), (7420, 86223), (8412, 76055), (8610, 74306), (8692, 73605), (9814, 65190), (10515, 60844), (10865, 58884), (11130, 57482), (13038, 49070), (14020, 45633), (14721, 43460), (15211, 42060), (17220, 37153), (19628, 32595), (21030, 30422), (21730, 29442), (22260, 28741), (24535, 26076)]