20013480

素因数分解:

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

素因数の和:126

約数の個数: 192

約数和(自身を含む): 70761600

約数和(自身を除く): 50748120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 29, 30, 36, 40, 45, 54, 58, 60, 71, 72, 81, 87, 90, 108, 116, 120, 135, 142, 145, 162, 174, 180, 213, 216, 232, 243, 261, 270, 284, 290, 324, 348, 355, 360, 405, 426, 435, 486, 522, 540, 568, 580, 639, 648, 696, 710, 783, 810, 852, 870, 972, 1044, 1065, 1080, 1160, 1215, 1278, 1305, 1420, 1566, 1620, 1704, 1740, 1917, 1944, 2059, 2088, 2130, 2349, 2430, 2556, 2610, 2840, 3132, 3195, 3240, 3480, 3834, 3915, 4118, 4260, 4698, 4860, 5112, 5220, 5751, 6177, 6264, 6390, 7047, 7668, 7830, 8236, 8520, 9396, 9585, 9720, 10295, 10440, 11502, 11745, 12354, 12780, 14094, 15336, 15660, 16472, 17253, 18531, 18792, 19170, 20590, 23004, 23490, 24708, 25560, 28188, 28755, 30885, 31320, 34506, 35235, 37062, 38340, 41180, 46008, 46980, 49416, 55593, 56376, 57510, 61770, 69012, 70470, 74124, 76680, 82360, 86265, 92655, 93960, 111186, 115020, 123540, 138024, 140940, 148248, 166779, 172530, 185310, 222372, 230040, 247080, 277965, 281880, 333558, 345060, 370620, 444744, 500337, 555930, 667116, 690120, 741240, 833895, 1000674, 1111860, 1334232, 1667790, 2001348, 2223720, 2501685, 3335580, 4002696, 5003370, 6671160, 10006740, 20013480]

約数ペア:

[(1, 20013480), (2, 10006740), (3, 6671160), (4, 5003370), (5, 4002696), (6, 3335580), (8, 2501685), (9, 2223720), (10, 2001348), (12, 1667790), (15, 1334232), (18, 1111860), (20, 1000674), (24, 833895), (27, 741240), (29, 690120), (30, 667116), (36, 555930), (40, 500337), (45, 444744), (54, 370620), (58, 345060), (60, 333558), (71, 281880), (72, 277965), (81, 247080), (87, 230040), (90, 222372), (108, 185310), (116, 172530), (120, 166779), (135, 148248), (142, 140940), (145, 138024), (162, 123540), (174, 115020), (180, 111186), (213, 93960), (216, 92655), (232, 86265), (243, 82360), (261, 76680), (270, 74124), (284, 70470), (290, 69012), (324, 61770), (348, 57510), (355, 56376), (360, 55593), (405, 49416), (426, 46980), (435, 46008), (486, 41180), (522, 38340), (540, 37062), (568, 35235), (580, 34506), (639, 31320), (648, 30885), (696, 28755), (710, 28188), (783, 25560), (810, 24708), (852, 23490), (870, 23004), (972, 20590), (1044, 19170), (1065, 18792), (1080, 18531), (1160, 17253), (1215, 16472), (1278, 15660), (1305, 15336), (1420, 14094), (1566, 12780), (1620, 12354), (1704, 11745), (1740, 11502), (1917, 10440), (1944, 10295), (2059, 9720), (2088, 9585), (2130, 9396), (2349, 8520), (2430, 8236), (2556, 7830), (2610, 7668), (2840, 7047), (3132, 6390), (3195, 6264), (3240, 6177), (3480, 5751), (3834, 5220), (3915, 5112), (4118, 4860), (4260, 4698)]