421207920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{11939}}^1$

素因数の和:11972

約数の個数: 180

約数和(自身を含む): 1645642440

約数和(自身を除く): 1224434520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1260, 1470, 1680, 1764, 1960, 2205, 2352, 2520, 2940, 3528, 3920, 4410, 5040, 5880, 7056, 8820, 11760, 11939, 17640, 23878, 35280, 35817, 47756, 59695, 71634, 83573, 95512, 107451, 119390, 143268, 167146, 179085, 191024, 214902, 238780, 250719, 286536, 334292, 358170, 417865, 429804, 477560, 501438, 537255, 573072, 585011, 668584, 716340, 752157, 835730, 859608, 955120, 1002876, 1074510, 1170022, 1253595, 1337168, 1432680, 1504314, 1671460, 1719216, 1755033, 2005752, 2149020, 2340044, 2507190, 2865360, 2925055, 3008628, 3342920, 3510066, 3760785, 4011504, 4298040, 4680088, 5014380, 5265099, 5850110, 6017256, 6685840, 7020132, 7521570, 8596080, 8775165, 9360176, 10028760, 10530198, 11700220, 12034512, 14040264, 15043140, 17550330, 20057520, 21060396, 23400440, 26325495, 28080528, 30086280, 35100660, 42120792, 46800880, 52650990, 60172560, 70201320, 84241584, 105301980, 140402640, 210603960, 421207920]

約数ペア:

[(1, 421207920), (2, 210603960), (3, 140402640), (4, 105301980), (5, 84241584), (6, 70201320), (7, 60172560), (8, 52650990), (9, 46800880), (10, 42120792), (12, 35100660), (14, 30086280), (15, 28080528), (16, 26325495), (18, 23400440), (20, 21060396), (21, 20057520), (24, 17550330), (28, 15043140), (30, 14040264), (35, 12034512), (36, 11700220), (40, 10530198), (42, 10028760), (45, 9360176), (48, 8775165), (49, 8596080), (56, 7521570), (60, 7020132), (63, 6685840), (70, 6017256), (72, 5850110), (80, 5265099), (84, 5014380), (90, 4680088), (98, 4298040), (105, 4011504), (112, 3760785), (120, 3510066), (126, 3342920), (140, 3008628), (144, 2925055), (147, 2865360), (168, 2507190), (180, 2340044), (196, 2149020), (210, 2005752), (240, 1755033), (245, 1719216), (252, 1671460), (280, 1504314), (294, 1432680), (315, 1337168), (336, 1253595), (360, 1170022), (392, 1074510), (420, 1002876), (441, 955120), (490, 859608), (504, 835730), (560, 752157), (588, 716340), (630, 668584), (720, 585011), (735, 573072), (784, 537255), (840, 501438), (882, 477560), (980, 429804), (1008, 417865), (1176, 358170), (1260, 334292), (1470, 286536), (1680, 250719), (1764, 238780), (1960, 214902), (2205, 191024), (2352, 179085), (2520, 167146), (2940, 143268), (3528, 119390), (3920, 107451), (4410, 95512), (5040, 83573), (5880, 71634), (7056, 59695), (8820, 47756), (11760, 35817), (11939, 35280), (17640, 23878)]