20443860

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{131}}^1$

素因数の和:183

約数の個数: 144

約数和(自身を含む): 68080320

約数和(自身を除く): 47636460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 85, 90, 102, 108, 131, 135, 153, 170, 180, 204, 255, 262, 270, 289, 306, 340, 393, 459, 510, 524, 540, 578, 612, 655, 765, 786, 867, 918, 1020, 1156, 1179, 1310, 1445, 1530, 1572, 1734, 1836, 1965, 2227, 2295, 2358, 2601, 2620, 2890, 3060, 3468, 3537, 3930, 4335, 4454, 4590, 4716, 5202, 5780, 5895, 6681, 7074, 7803, 7860, 8670, 8908, 9180, 10404, 11135, 11790, 13005, 13362, 14148, 15606, 17340, 17685, 20043, 22270, 23580, 26010, 26724, 31212, 33405, 35370, 37859, 39015, 40086, 44540, 52020, 60129, 66810, 70740, 75718, 78030, 80172, 100215, 113577, 120258, 133620, 151436, 156060, 189295, 200430, 227154, 240516, 300645, 340731, 378590, 400860, 454308, 567885, 601290, 681462, 757180, 1022193, 1135770, 1202580, 1362924, 1703655, 2044386, 2271540, 3407310, 4088772, 5110965, 6814620, 10221930, 20443860]

約数ペア:

[(1, 20443860), (2, 10221930), (3, 6814620), (4, 5110965), (5, 4088772), (6, 3407310), (9, 2271540), (10, 2044386), (12, 1703655), (15, 1362924), (17, 1202580), (18, 1135770), (20, 1022193), (27, 757180), (30, 681462), (34, 601290), (36, 567885), (45, 454308), (51, 400860), (54, 378590), (60, 340731), (68, 300645), (85, 240516), (90, 227154), (102, 200430), (108, 189295), (131, 156060), (135, 151436), (153, 133620), (170, 120258), (180, 113577), (204, 100215), (255, 80172), (262, 78030), (270, 75718), (289, 70740), (306, 66810), (340, 60129), (393, 52020), (459, 44540), (510, 40086), (524, 39015), (540, 37859), (578, 35370), (612, 33405), (655, 31212), (765, 26724), (786, 26010), (867, 23580), (918, 22270), (1020, 20043), (1156, 17685), (1179, 17340), (1310, 15606), (1445, 14148), (1530, 13362), (1572, 13005), (1734, 11790), (1836, 11135), (1965, 10404), (2227, 9180), (2295, 8908), (2358, 8670), (2601, 7860), (2620, 7803), (2890, 7074), (3060, 6681), (3468, 5895), (3537, 5780), (3930, 5202), (4335, 4716), (4454, 4590)]