51516180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:254

約数の個数: 144

約数和(自身を含む): 165110400

約数和(自身を除く): 113594220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 71, 87, 90, 116, 139, 142, 145, 174, 180, 213, 261, 278, 284, 290, 348, 355, 417, 426, 435, 522, 556, 580, 639, 695, 710, 834, 852, 870, 1044, 1065, 1251, 1278, 1305, 1390, 1420, 1668, 1740, 2059, 2085, 2130, 2502, 2556, 2610, 2780, 3195, 4031, 4118, 4170, 4260, 5004, 5220, 6177, 6255, 6390, 8062, 8236, 8340, 9869, 10295, 12093, 12354, 12510, 12780, 16124, 18531, 19738, 20155, 20590, 24186, 24708, 25020, 29607, 30885, 36279, 37062, 39476, 40310, 41180, 48372, 49345, 59214, 60465, 61770, 72558, 74124, 80620, 88821, 92655, 98690, 118428, 120930, 123540, 145116, 148035, 177642, 181395, 185310, 197380, 241860, 286201, 296070, 355284, 362790, 370620, 444105, 572402, 592140, 725580, 858603, 888210, 1144804, 1431005, 1717206, 1776420, 2575809, 2862010, 3434412, 4293015, 5151618, 5724020, 8586030, 10303236, 12879045, 17172060, 25758090, 51516180]

約数ペア:

[(1, 51516180), (2, 25758090), (3, 17172060), (4, 12879045), (5, 10303236), (6, 8586030), (9, 5724020), (10, 5151618), (12, 4293015), (15, 3434412), (18, 2862010), (20, 2575809), (29, 1776420), (30, 1717206), (36, 1431005), (45, 1144804), (58, 888210), (60, 858603), (71, 725580), (87, 592140), (90, 572402), (116, 444105), (139, 370620), (142, 362790), (145, 355284), (174, 296070), (180, 286201), (213, 241860), (261, 197380), (278, 185310), (284, 181395), (290, 177642), (348, 148035), (355, 145116), (417, 123540), (426, 120930), (435, 118428), (522, 98690), (556, 92655), (580, 88821), (639, 80620), (695, 74124), (710, 72558), (834, 61770), (852, 60465), (870, 59214), (1044, 49345), (1065, 48372), (1251, 41180), (1278, 40310), (1305, 39476), (1390, 37062), (1420, 36279), (1668, 30885), (1740, 29607), (2059, 25020), (2085, 24708), (2130, 24186), (2502, 20590), (2556, 20155), (2610, 19738), (2780, 18531), (3195, 16124), (4031, 12780), (4118, 12510), (4170, 12354), (4260, 12093), (5004, 10295), (5220, 9869), (6177, 8340), (6255, 8236), (6390, 8062)]