20329470

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{61}}^1$

素因数の和:127

約数の個数: 144

約数和(自身を含む): 64183392

約数和(自身を除く): 43853922

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 30, 35, 42, 45, 46, 61, 63, 69, 70, 90, 105, 115, 122, 126, 138, 161, 183, 207, 210, 230, 305, 315, 322, 345, 366, 414, 427, 483, 529, 549, 610, 630, 690, 805, 854, 915, 966, 1035, 1058, 1098, 1281, 1403, 1449, 1587, 1610, 1830, 2070, 2135, 2415, 2562, 2645, 2745, 2806, 2898, 3174, 3703, 3843, 4209, 4270, 4761, 4830, 5290, 5490, 6405, 7015, 7245, 7406, 7686, 7935, 8418, 9522, 9821, 11109, 12627, 12810, 14030, 14490, 15870, 18515, 19215, 19642, 21045, 22218, 23805, 25254, 29463, 32269, 33327, 37030, 38430, 42090, 47610, 49105, 55545, 58926, 63135, 64538, 66654, 88389, 96807, 98210, 111090, 126270, 147315, 161345, 166635, 176778, 193614, 225883, 290421, 294630, 322690, 333270, 441945, 451766, 484035, 580842, 677649, 883890, 968070, 1129415, 1355298, 1452105, 2032947, 2258830, 2904210, 3388245, 4065894, 6776490, 10164735, 20329470]

約数ペア:

[(1, 20329470), (2, 10164735), (3, 6776490), (5, 4065894), (6, 3388245), (7, 2904210), (9, 2258830), (10, 2032947), (14, 1452105), (15, 1355298), (18, 1129415), (21, 968070), (23, 883890), (30, 677649), (35, 580842), (42, 484035), (45, 451766), (46, 441945), (61, 333270), (63, 322690), (69, 294630), (70, 290421), (90, 225883), (105, 193614), (115, 176778), (122, 166635), (126, 161345), (138, 147315), (161, 126270), (183, 111090), (207, 98210), (210, 96807), (230, 88389), (305, 66654), (315, 64538), (322, 63135), (345, 58926), (366, 55545), (414, 49105), (427, 47610), (483, 42090), (529, 38430), (549, 37030), (610, 33327), (630, 32269), (690, 29463), (805, 25254), (854, 23805), (915, 22218), (966, 21045), (1035, 19642), (1058, 19215), (1098, 18515), (1281, 15870), (1403, 14490), (1449, 14030), (1587, 12810), (1610, 12627), (1830, 11109), (2070, 9821), (2135, 9522), (2415, 8418), (2562, 7935), (2645, 7686), (2745, 7406), (2806, 7245), (2898, 7015), (3174, 6405), (3703, 5490), (3843, 5290), (4209, 4830), (4270, 4761)]