405130180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17123}}^1$

素因数の和:17165

約数の個数: 72

約数和(自身を含む): 1052920512

約数和(自身を除く): 647790332

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 364, 455, 676, 845, 910, 1183, 1690, 1820, 2366, 3380, 4732, 5915, 11830, 17123, 23660, 34246, 68492, 85615, 119861, 171230, 222599, 239722, 342460, 445198, 479444, 599305, 890396, 1112995, 1198610, 1558193, 2225990, 2397220, 2893787, 3116386, 4451980, 5787574, 6232772, 7790965, 11575148, 14468935, 15581930, 20256509, 28937870, 31163860, 40513018, 57875740, 81026036, 101282545, 202565090, 405130180]

約数ペア:

[(1, 405130180), (2, 202565090), (4, 101282545), (5, 81026036), (7, 57875740), (10, 40513018), (13, 31163860), (14, 28937870), (20, 20256509), (26, 15581930), (28, 14468935), (35, 11575148), (52, 7790965), (65, 6232772), (70, 5787574), (91, 4451980), (130, 3116386), (140, 2893787), (169, 2397220), (182, 2225990), (260, 1558193), (338, 1198610), (364, 1112995), (455, 890396), (676, 599305), (845, 479444), (910, 445198), (1183, 342460), (1690, 239722), (1820, 222599), (2366, 171230), (3380, 119861), (4732, 85615), (5915, 68492), (11830, 34246), (17123, 23660)]