20378713040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{7477}}^1$

素因数の和:7685

約数の個数: 160

約数和(自身を含む): 56259446784

約数和(自身を除く): 35880733744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 157, 217, 248, 280, 310, 314, 434, 496, 560, 620, 628, 785, 868, 1085, 1099, 1240, 1256, 1570, 1736, 2170, 2198, 2480, 2512, 3140, 3472, 4340, 4396, 4867, 5495, 6280, 7477, 8680, 8792, 9734, 10990, 12560, 14954, 17360, 17584, 19468, 21980, 24335, 29908, 34069, 37385, 38936, 43960, 48670, 52339, 59816, 68138, 74770, 77872, 87920, 97340, 104678, 119632, 136276, 149540, 170345, 194680, 209356, 231787, 261695, 272552, 299080, 340690, 389360, 418712, 463574, 523390, 545104, 598160, 681380, 837424, 927148, 1046780, 1158935, 1173889, 1362760, 1622509, 1854296, 2093560, 2317870, 2347778, 2725520, 3245018, 3708592, 4187120, 4635740, 4695556, 5869445, 6490036, 8112545, 8217223, 9271480, 9391112, 11738890, 12980072, 16225090, 16434446, 18542960, 18782224, 23477780, 25960144, 32450180, 32868892, 36390559, 41086115, 46955560, 64900360, 65737784, 72781118, 82172230, 93911120, 129800720, 131475568, 145562236, 164344460, 181952795, 254733913, 291124472, 328688920, 363905590, 509467826, 582248944, 657377840, 727811180, 1018935652, 1273669565, 1455622360, 2037871304, 2547339130, 2911244720, 4075742608, 5094678260, 10189356520, 20378713040]

約数ペア:

[(1, 20378713040), (2, 10189356520), (4, 5094678260), (5, 4075742608), (7, 2911244720), (8, 2547339130), (10, 2037871304), (14, 1455622360), (16, 1273669565), (20, 1018935652), (28, 727811180), (31, 657377840), (35, 582248944), (40, 509467826), (56, 363905590), (62, 328688920), (70, 291124472), (80, 254733913), (112, 181952795), (124, 164344460), (140, 145562236), (155, 131475568), (157, 129800720), (217, 93911120), (248, 82172230), (280, 72781118), (310, 65737784), (314, 64900360), (434, 46955560), (496, 41086115), (560, 36390559), (620, 32868892), (628, 32450180), (785, 25960144), (868, 23477780), (1085, 18782224), (1099, 18542960), (1240, 16434446), (1256, 16225090), (1570, 12980072), (1736, 11738890), (2170, 9391112), (2198, 9271480), (2480, 8217223), (2512, 8112545), (3140, 6490036), (3472, 5869445), (4340, 4695556), (4396, 4635740), (4867, 4187120), (5495, 3708592), (6280, 3245018), (7477, 2725520), (8680, 2347778), (8792, 2317870), (9734, 2093560), (10990, 1854296), (12560, 1622509), (14954, 1362760), (17360, 1173889), (17584, 1158935), (19468, 1046780), (21980, 927148), (24335, 837424), (29908, 681380), (34069, 598160), (37385, 545104), (38936, 523390), (43960, 463574), (48670, 418712), (52339, 389360), (59816, 340690), (68138, 299080), (74770, 272552), (77872, 261695), (87920, 231787), (97340, 209356), (104678, 194680), (119632, 170345), (136276, 149540)]