20762820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{467}}^1$

素因数の和:514

約数の個数: 144

約数和(自身を含む): 71547840

約数和(自身を除く): 50785020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 90, 95, 114, 117, 130, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 342, 380, 390, 467, 468, 494, 570, 585, 684, 741, 780, 855, 934, 988, 1140, 1170, 1235, 1401, 1482, 1710, 1868, 2223, 2335, 2340, 2470, 2802, 2964, 3420, 3705, 4203, 4446, 4670, 4940, 5604, 6071, 7005, 7410, 8406, 8873, 8892, 9340, 11115, 12142, 14010, 14820, 16812, 17746, 18213, 21015, 22230, 24284, 26619, 28020, 30355, 35492, 36426, 42030, 44365, 44460, 53238, 54639, 60710, 72852, 79857, 84060, 88730, 91065, 106476, 109278, 115349, 121420, 133095, 159714, 177460, 182130, 218556, 230698, 266190, 273195, 319428, 346047, 364260, 399285, 461396, 532380, 546390, 576745, 692094, 798570, 1038141, 1092780, 1153490, 1384188, 1597140, 1730235, 2076282, 2306980, 3460470, 4152564, 5190705, 6920940, 10381410, 20762820]

約数ペア:

[(1, 20762820), (2, 10381410), (3, 6920940), (4, 5190705), (5, 4152564), (6, 3460470), (9, 2306980), (10, 2076282), (12, 1730235), (13, 1597140), (15, 1384188), (18, 1153490), (19, 1092780), (20, 1038141), (26, 798570), (30, 692094), (36, 576745), (38, 546390), (39, 532380), (45, 461396), (52, 399285), (57, 364260), (60, 346047), (65, 319428), (76, 273195), (78, 266190), (90, 230698), (95, 218556), (114, 182130), (117, 177460), (130, 159714), (156, 133095), (171, 121420), (180, 115349), (190, 109278), (195, 106476), (228, 91065), (234, 88730), (247, 84060), (260, 79857), (285, 72852), (342, 60710), (380, 54639), (390, 53238), (467, 44460), (468, 44365), (494, 42030), (570, 36426), (585, 35492), (684, 30355), (741, 28020), (780, 26619), (855, 24284), (934, 22230), (988, 21015), (1140, 18213), (1170, 17746), (1235, 16812), (1401, 14820), (1482, 14010), (1710, 12142), (1868, 11115), (2223, 9340), (2335, 8892), (2340, 8873), (2470, 8406), (2802, 7410), (2964, 7005), (3420, 6071), (3705, 5604), (4203, 4940), (4446, 4670)]