311580225

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{131}}^1$

素因数の和:220

約数の個数: 108

約数和(自身を含む): 633883536

約数和(自身を除く): 322303311

約数列:

[1, 3, 5, 9, 11, 15, 25, 31, 33, 45, 55, 75, 93, 99, 131, 155, 165, 225, 275, 279, 341, 393, 465, 495, 655, 775, 825, 961, 1023, 1179, 1395, 1441, 1705, 1965, 2325, 2475, 2883, 3069, 3275, 4061, 4323, 4805, 5115, 5895, 6975, 7205, 8525, 8649, 9825, 10571, 12183, 12969, 14415, 15345, 20305, 21615, 24025, 25575, 29475, 31713, 36025, 36549, 43245, 44671, 52855, 60915, 64845, 72075, 76725, 95139, 101525, 108075, 125891, 134013, 158565, 182745, 216225, 223355, 264275, 304575, 324225, 377673, 402039, 475695, 629455, 670065, 792825, 913725, 1116775, 1133019, 1384801, 1888365, 2010195, 2378475, 3147275, 3350325, 4154403, 5665095, 6924005, 9441825, 10050975, 12463209, 20772015, 28325475, 34620025, 62316045, 103860075, 311580225]

約数ペア:

[(1, 311580225), (3, 103860075), (5, 62316045), (9, 34620025), (11, 28325475), (15, 20772015), (25, 12463209), (31, 10050975), (33, 9441825), (45, 6924005), (55, 5665095), (75, 4154403), (93, 3350325), (99, 3147275), (131, 2378475), (155, 2010195), (165, 1888365), (225, 1384801), (275, 1133019), (279, 1116775), (341, 913725), (393, 792825), (465, 670065), (495, 629455), (655, 475695), (775, 402039), (825, 377673), (961, 324225), (1023, 304575), (1179, 264275), (1395, 223355), (1441, 216225), (1705, 182745), (1965, 158565), (2325, 134013), (2475, 125891), (2883, 108075), (3069, 101525), (3275, 95139), (4061, 76725), (4323, 72075), (4805, 64845), (5115, 60915), (5895, 52855), (6975, 44671), (7205, 43245), (8525, 36549), (8649, 36025), (9825, 31713), (10571, 29475), (12183, 25575), (12969, 24025), (14415, 21615), (15345, 20305)]