285578820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{839}}^1$

素因数の和:946

約数の個数: 144

約数和(自身を含む): 909941760

約数和(自身を除く): 624362940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 61, 62, 90, 93, 122, 124, 155, 180, 183, 186, 244, 279, 305, 310, 366, 372, 465, 549, 558, 610, 620, 732, 839, 915, 930, 1098, 1116, 1220, 1395, 1678, 1830, 1860, 1891, 2196, 2517, 2745, 2790, 3356, 3660, 3782, 4195, 5034, 5490, 5580, 5673, 7551, 7564, 8390, 9455, 10068, 10980, 11346, 12585, 15102, 16780, 17019, 18910, 22692, 25170, 26009, 28365, 30204, 34038, 37755, 37820, 50340, 51179, 52018, 56730, 68076, 75510, 78027, 85095, 102358, 104036, 113460, 130045, 151020, 153537, 156054, 170190, 204716, 234081, 255895, 260090, 307074, 312108, 340380, 390135, 460611, 468162, 511790, 520180, 614148, 767685, 780270, 921222, 936324, 1023580, 1170405, 1535370, 1560540, 1586549, 1842444, 2303055, 2340810, 3070740, 3173098, 4606110, 4681620, 4759647, 6346196, 7932745, 9212220, 9519294, 14278941, 15865490, 19038588, 23798235, 28557882, 31730980, 47596470, 57115764, 71394705, 95192940, 142789410, 285578820]

約数ペア:

[(1, 285578820), (2, 142789410), (3, 95192940), (4, 71394705), (5, 57115764), (6, 47596470), (9, 31730980), (10, 28557882), (12, 23798235), (15, 19038588), (18, 15865490), (20, 14278941), (30, 9519294), (31, 9212220), (36, 7932745), (45, 6346196), (60, 4759647), (61, 4681620), (62, 4606110), (90, 3173098), (93, 3070740), (122, 2340810), (124, 2303055), (155, 1842444), (180, 1586549), (183, 1560540), (186, 1535370), (244, 1170405), (279, 1023580), (305, 936324), (310, 921222), (366, 780270), (372, 767685), (465, 614148), (549, 520180), (558, 511790), (610, 468162), (620, 460611), (732, 390135), (839, 340380), (915, 312108), (930, 307074), (1098, 260090), (1116, 255895), (1220, 234081), (1395, 204716), (1678, 170190), (1830, 156054), (1860, 153537), (1891, 151020), (2196, 130045), (2517, 113460), (2745, 104036), (2790, 102358), (3356, 85095), (3660, 78027), (3782, 75510), (4195, 68076), (5034, 56730), (5490, 52018), (5580, 51179), (5673, 50340), (7551, 37820), (7564, 37755), (8390, 34038), (9455, 30204), (10068, 28365), (10980, 26009), (11346, 25170), (12585, 22692), (15102, 18910), (16780, 17019)]