20347740

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{769}}^1$

素因数の和:801

約数の個数: 144

約数和(自身を含む): 73735200

約数和(自身を除く): 53387460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 769, 882, 945, 980, 1260, 1323, 1470, 1538, 1764, 1890, 2205, 2307, 2646, 2940, 3076, 3780, 3845, 4410, 4614, 5292, 5383, 6615, 6921, 7690, 8820, 9228, 10766, 11535, 13230, 13842, 15380, 16149, 20763, 21532, 23070, 26460, 26915, 27684, 32298, 34605, 37681, 41526, 46140, 48447, 53830, 64596, 69210, 75362, 80745, 83052, 96894, 103815, 107660, 113043, 138420, 145341, 150724, 161490, 188405, 193788, 207630, 226086, 242235, 290682, 322980, 339129, 376810, 415260, 452172, 484470, 565215, 581364, 678258, 726705, 753620, 968940, 1017387, 1130430, 1356516, 1453410, 1695645, 2034774, 2260860, 2906820, 3391290, 4069548, 5086935, 6782580, 10173870, 20347740]

約数ペア:

[(1, 20347740), (2, 10173870), (3, 6782580), (4, 5086935), (5, 4069548), (6, 3391290), (7, 2906820), (9, 2260860), (10, 2034774), (12, 1695645), (14, 1453410), (15, 1356516), (18, 1130430), (20, 1017387), (21, 968940), (27, 753620), (28, 726705), (30, 678258), (35, 581364), (36, 565215), (42, 484470), (45, 452172), (49, 415260), (54, 376810), (60, 339129), (63, 322980), (70, 290682), (84, 242235), (90, 226086), (98, 207630), (105, 193788), (108, 188405), (126, 161490), (135, 150724), (140, 145341), (147, 138420), (180, 113043), (189, 107660), (196, 103815), (210, 96894), (245, 83052), (252, 80745), (270, 75362), (294, 69210), (315, 64596), (378, 53830), (420, 48447), (441, 46140), (490, 41526), (540, 37681), (588, 34605), (630, 32298), (735, 27684), (756, 26915), (769, 26460), (882, 23070), (945, 21532), (980, 20763), (1260, 16149), (1323, 15380), (1470, 13842), (1538, 13230), (1764, 11535), (1890, 10766), (2205, 9228), (2307, 8820), (2646, 7690), (2940, 6921), (3076, 6615), (3780, 5383), (3845, 5292), (4410, 4614)]