21290772720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{408809}}^1$

素因数の和:408863

約数の個数: 160

約数和(自身を含む): 77863587840

約数和(自身を除く): 56572815120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 105, 112, 120, 124, 140, 155, 168, 186, 210, 217, 240, 248, 280, 310, 336, 372, 420, 434, 465, 496, 560, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1488, 1680, 1736, 1860, 2170, 2480, 2604, 3255, 3472, 3720, 4340, 5208, 6510, 7440, 8680, 10416, 13020, 17360, 26040, 52080, 408809, 817618, 1226427, 1635236, 2044045, 2452854, 2861663, 3270472, 4088090, 4905708, 5723326, 6132135, 6540944, 8176180, 8584989, 9811416, 11446652, 12264270, 12673079, 14308315, 16352360, 17169978, 19622832, 22893304, 24528540, 25346158, 28616630, 32704720, 34339956, 38019237, 42924945, 45786608, 49057080, 50692316, 57233260, 63365395, 68679912, 76038474, 85849890, 88711553, 98114160, 101384632, 114466520, 126730790, 137359824, 152076948, 171699780, 177423106, 190096185, 202769264, 228933040, 253461580, 266134659, 304153896, 343399560, 354846212, 380192370, 443557765, 506923160, 532269318, 608307792, 686799120, 709692424, 760384740, 887115530, 1013846320, 1064538636, 1330673295, 1419384848, 1520769480, 1774231060, 2129077272, 2661346590, 3041538960, 3548462120, 4258154544, 5322693180, 7096924240, 10645386360, 21290772720]

約数ペア:

[(1, 21290772720), (2, 10645386360), (3, 7096924240), (4, 5322693180), (5, 4258154544), (6, 3548462120), (7, 3041538960), (8, 2661346590), (10, 2129077272), (12, 1774231060), (14, 1520769480), (15, 1419384848), (16, 1330673295), (20, 1064538636), (21, 1013846320), (24, 887115530), (28, 760384740), (30, 709692424), (31, 686799120), (35, 608307792), (40, 532269318), (42, 506923160), (48, 443557765), (56, 380192370), (60, 354846212), (62, 343399560), (70, 304153896), (80, 266134659), (84, 253461580), (93, 228933040), (105, 202769264), (112, 190096185), (120, 177423106), (124, 171699780), (140, 152076948), (155, 137359824), (168, 126730790), (186, 114466520), (210, 101384632), (217, 98114160), (240, 88711553), (248, 85849890), (280, 76038474), (310, 68679912), (336, 63365395), (372, 57233260), (420, 50692316), (434, 49057080), (465, 45786608), (496, 42924945), (560, 38019237), (620, 34339956), (651, 32704720), (744, 28616630), (840, 25346158), (868, 24528540), (930, 22893304), (1085, 19622832), (1240, 17169978), (1302, 16352360), (1488, 14308315), (1680, 12673079), (1736, 12264270), (1860, 11446652), (2170, 9811416), (2480, 8584989), (2604, 8176180), (3255, 6540944), (3472, 6132135), (3720, 5723326), (4340, 4905708), (5208, 4088090), (6510, 3270472), (7440, 2861663), (8680, 2452854), (10416, 2044045), (13020, 1635236), (17360, 1226427), (26040, 817618), (52080, 408809)]