405181980

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{15313}}^1$

素因数の和:15345

約数の個数: 144

約数和(自身を含む): 1466468640

約数和(自身を除く): 1061286660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 882, 945, 980, 1260, 1323, 1470, 1764, 1890, 2205, 2646, 2940, 3780, 4410, 5292, 6615, 8820, 13230, 15313, 26460, 30626, 45939, 61252, 76565, 91878, 107191, 137817, 153130, 183756, 214382, 229695, 275634, 306260, 321573, 413451, 428764, 459390, 535955, 551268, 643146, 689085, 750337, 826902, 918780, 964719, 1071910, 1286292, 1378170, 1500674, 1607865, 1653804, 1929438, 2067255, 2143820, 2251011, 2756340, 2894157, 3001348, 3215730, 3751685, 3858876, 4134510, 4502022, 4823595, 5788314, 6431460, 6753033, 7503370, 8269020, 9004044, 9647190, 11255055, 11576628, 13506066, 14470785, 15006740, 19294380, 20259099, 22510110, 27012132, 28941570, 33765165, 40518198, 45020220, 57883140, 67530330, 81036396, 101295495, 135060660, 202590990, 405181980]

約数ペア:

[(1, 405181980), (2, 202590990), (3, 135060660), (4, 101295495), (5, 81036396), (6, 67530330), (7, 57883140), (9, 45020220), (10, 40518198), (12, 33765165), (14, 28941570), (15, 27012132), (18, 22510110), (20, 20259099), (21, 19294380), (27, 15006740), (28, 14470785), (30, 13506066), (35, 11576628), (36, 11255055), (42, 9647190), (45, 9004044), (49, 8269020), (54, 7503370), (60, 6753033), (63, 6431460), (70, 5788314), (84, 4823595), (90, 4502022), (98, 4134510), (105, 3858876), (108, 3751685), (126, 3215730), (135, 3001348), (140, 2894157), (147, 2756340), (180, 2251011), (189, 2143820), (196, 2067255), (210, 1929438), (245, 1653804), (252, 1607865), (270, 1500674), (294, 1378170), (315, 1286292), (378, 1071910), (420, 964719), (441, 918780), (490, 826902), (540, 750337), (588, 689085), (630, 643146), (735, 551268), (756, 535955), (882, 459390), (945, 428764), (980, 413451), (1260, 321573), (1323, 306260), (1470, 275634), (1764, 229695), (1890, 214382), (2205, 183756), (2646, 153130), (2940, 137817), (3780, 107191), (4410, 91878), (5292, 76565), (6615, 61252), (8820, 45939), (13230, 30626), (15313, 26460)]