618883380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{563}}^1$

素因数の和:806

約数の個数: 144

約数和(自身を含む): 1951133184

約数和(自身を除く): 1332249804

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 197, 279, 310, 372, 394, 465, 558, 563, 591, 620, 788, 930, 985, 1116, 1126, 1182, 1395, 1689, 1773, 1860, 1970, 2252, 2364, 2790, 2815, 2955, 3378, 3546, 3940, 5067, 5580, 5630, 5910, 6107, 6756, 7092, 8445, 8865, 10134, 11260, 11820, 12214, 16890, 17453, 17730, 18321, 20268, 24428, 25335, 30535, 33780, 34906, 35460, 36642, 50670, 52359, 54963, 61070, 69812, 73284, 87265, 91605, 101340, 104718, 109926, 110911, 122140, 157077, 174530, 183210, 209436, 219852, 221822, 261795, 274815, 314154, 332733, 349060, 366420, 443644, 523590, 549630, 554555, 628308, 665466, 785385, 998199, 1047180, 1099260, 1109110, 1330932, 1570770, 1663665, 1996398, 2218220, 3141540, 3327330, 3438241, 3992796, 4990995, 6654660, 6876482, 9981990, 10314723, 13752964, 17191205, 19963980, 20629446, 30944169, 34382410, 41258892, 51573615, 61888338, 68764820, 103147230, 123776676, 154720845, 206294460, 309441690, 618883380]

約数ペア:

[(1, 618883380), (2, 309441690), (3, 206294460), (4, 154720845), (5, 123776676), (6, 103147230), (9, 68764820), (10, 61888338), (12, 51573615), (15, 41258892), (18, 34382410), (20, 30944169), (30, 20629446), (31, 19963980), (36, 17191205), (45, 13752964), (60, 10314723), (62, 9981990), (90, 6876482), (93, 6654660), (124, 4990995), (155, 3992796), (180, 3438241), (186, 3327330), (197, 3141540), (279, 2218220), (310, 1996398), (372, 1663665), (394, 1570770), (465, 1330932), (558, 1109110), (563, 1099260), (591, 1047180), (620, 998199), (788, 785385), (930, 665466), (985, 628308), (1116, 554555), (1126, 549630), (1182, 523590), (1395, 443644), (1689, 366420), (1773, 349060), (1860, 332733), (1970, 314154), (2252, 274815), (2364, 261795), (2790, 221822), (2815, 219852), (2955, 209436), (3378, 183210), (3546, 174530), (3940, 157077), (5067, 122140), (5580, 110911), (5630, 109926), (5910, 104718), (6107, 101340), (6756, 91605), (7092, 87265), (8445, 73284), (8865, 69812), (10134, 61070), (11260, 54963), (11820, 52359), (12214, 50670), (16890, 36642), (17453, 35460), (17730, 34906), (18321, 33780), (20268, 30535), (24428, 25335)]