20123280892

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^4\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:373

約数の個数: 120

約数和(自身を含む): 42416398080

約数和(自身を除く): 22293117188

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 67, 134, 143, 169, 239, 268, 286, 338, 478, 572, 676, 737, 871, 956, 1474, 1742, 1859, 2197, 2629, 2948, 3107, 3484, 3718, 4394, 5258, 6214, 7436, 8788, 9581, 10516, 11323, 12428, 16013, 19162, 22646, 24167, 28561, 32026, 34177, 38324, 40391, 45292, 48334, 57122, 64052, 68354, 80782, 96668, 114244, 124553, 136708, 147199, 161564, 176143, 208169, 249106, 294398, 314171, 352286, 416338, 444301, 498212, 525083, 588796, 628342, 704572, 832676, 888602, 1050166, 1256684, 1619189, 1777204, 1913587, 2100332, 2289859, 2706197, 3238378, 3827174, 4579718, 5412394, 5775913, 6476756, 6826079, 7654348, 9159436, 10824788, 11551826, 13652158, 21049457, 23103652, 27304316, 29768167, 35180561, 42098914, 59536334, 70361122, 75086869, 84197828, 119072668, 140722244, 150173738, 300347476, 386986171, 457347293, 773972342, 914694586, 1547944684, 1829389172, 5030820223, 10061640446, 20123280892]

約数ペア:

[(1, 20123280892), (2, 10061640446), (4, 5030820223), (11, 1829389172), (13, 1547944684), (22, 914694586), (26, 773972342), (44, 457347293), (52, 386986171), (67, 300347476), (134, 150173738), (143, 140722244), (169, 119072668), (239, 84197828), (268, 75086869), (286, 70361122), (338, 59536334), (478, 42098914), (572, 35180561), (676, 29768167), (737, 27304316), (871, 23103652), (956, 21049457), (1474, 13652158), (1742, 11551826), (1859, 10824788), (2197, 9159436), (2629, 7654348), (2948, 6826079), (3107, 6476756), (3484, 5775913), (3718, 5412394), (4394, 4579718), (5258, 3827174), (6214, 3238378), (7436, 2706197), (8788, 2289859), (9581, 2100332), (10516, 1913587), (11323, 1777204), (12428, 1619189), (16013, 1256684), (19162, 1050166), (22646, 888602), (24167, 832676), (28561, 704572), (32026, 628342), (34177, 588796), (38324, 525083), (40391, 498212), (45292, 444301), (48334, 416338), (57122, 352286), (64052, 314171), (68354, 294398), (80782, 249106), (96668, 208169), (114244, 176143), (124553, 161564), (136708, 147199)]