640467180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{673}}^1$

素因数の和:1016

約数の個数: 144

約数和(自身を含む): 2066710464

約数和(自身を除く): 1426243284

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 311, 340, 510, 612, 622, 673, 765, 933, 1020, 1244, 1346, 1530, 1555, 1866, 2019, 2692, 2799, 3060, 3110, 3365, 3732, 4038, 4665, 5287, 5598, 6057, 6220, 6730, 8076, 9330, 10095, 10574, 11196, 11441, 12114, 13460, 13995, 15861, 18660, 20190, 21148, 22882, 24228, 26435, 27990, 30285, 31722, 34323, 40380, 45764, 47583, 52870, 55980, 57205, 60570, 63444, 68646, 79305, 95166, 102969, 105740, 114410, 121140, 137292, 158610, 171615, 190332, 205938, 209303, 228820, 237915, 317220, 343230, 411876, 418606, 475830, 514845, 627909, 686460, 837212, 951660, 1029690, 1046515, 1255818, 1883727, 2059380, 2093030, 2511636, 3139545, 3558151, 3767454, 4186060, 6279090, 7116302, 7534908, 9418635, 10674453, 12558180, 14232604, 17790755, 18837270, 21348906, 32023359, 35581510, 37674540, 42697812, 53372265, 64046718, 71163020, 106744530, 128093436, 160116795, 213489060, 320233590, 640467180]

約数ペア:

[(1, 640467180), (2, 320233590), (3, 213489060), (4, 160116795), (5, 128093436), (6, 106744530), (9, 71163020), (10, 64046718), (12, 53372265), (15, 42697812), (17, 37674540), (18, 35581510), (20, 32023359), (30, 21348906), (34, 18837270), (36, 17790755), (45, 14232604), (51, 12558180), (60, 10674453), (68, 9418635), (85, 7534908), (90, 7116302), (102, 6279090), (153, 4186060), (170, 3767454), (180, 3558151), (204, 3139545), (255, 2511636), (306, 2093030), (311, 2059380), (340, 1883727), (510, 1255818), (612, 1046515), (622, 1029690), (673, 951660), (765, 837212), (933, 686460), (1020, 627909), (1244, 514845), (1346, 475830), (1530, 418606), (1555, 411876), (1866, 343230), (2019, 317220), (2692, 237915), (2799, 228820), (3060, 209303), (3110, 205938), (3365, 190332), (3732, 171615), (4038, 158610), (4665, 137292), (5287, 121140), (5598, 114410), (6057, 105740), (6220, 102969), (6730, 95166), (8076, 79305), (9330, 68646), (10095, 63444), (10574, 60570), (11196, 57205), (11441, 55980), (12114, 52870), (13460, 47583), (13995, 45764), (15861, 40380), (18660, 34323), (20190, 31722), (21148, 30285), (22882, 27990), (24228, 26435)]