171612180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^3\times {\mathrm{139}}^1$

素因数の和:211

約数の個数: 144

約数和(自身を含む): 553425600

約数和(自身を除く): 381813420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 139, 171, 180, 190, 228, 278, 285, 342, 361, 380, 417, 556, 570, 684, 695, 722, 834, 855, 1083, 1140, 1251, 1390, 1444, 1668, 1710, 1805, 2085, 2166, 2502, 2641, 2780, 3249, 3420, 3610, 4170, 4332, 5004, 5282, 5415, 6255, 6498, 6859, 7220, 7923, 8340, 10564, 10830, 12510, 12996, 13205, 13718, 15846, 16245, 20577, 21660, 23769, 25020, 26410, 27436, 31692, 32490, 34295, 39615, 41154, 47538, 50179, 52820, 61731, 64980, 68590, 79230, 82308, 95076, 100358, 102885, 118845, 123462, 137180, 150537, 158460, 200716, 205770, 237690, 246924, 250895, 301074, 308655, 411540, 451611, 475380, 501790, 602148, 617310, 752685, 903222, 953401, 1003580, 1234620, 1505370, 1806444, 1906802, 2258055, 2860203, 3010740, 3813604, 4516110, 4767005, 5720406, 8580609, 9032220, 9534010, 11440812, 14301015, 17161218, 19068020, 28602030, 34322436, 42903045, 57204060, 85806090, 171612180]

約数ペア:

[(1, 171612180), (2, 85806090), (3, 57204060), (4, 42903045), (5, 34322436), (6, 28602030), (9, 19068020), (10, 17161218), (12, 14301015), (15, 11440812), (18, 9534010), (19, 9032220), (20, 8580609), (30, 5720406), (36, 4767005), (38, 4516110), (45, 3813604), (57, 3010740), (60, 2860203), (76, 2258055), (90, 1906802), (95, 1806444), (114, 1505370), (139, 1234620), (171, 1003580), (180, 953401), (190, 903222), (228, 752685), (278, 617310), (285, 602148), (342, 501790), (361, 475380), (380, 451611), (417, 411540), (556, 308655), (570, 301074), (684, 250895), (695, 246924), (722, 237690), (834, 205770), (855, 200716), (1083, 158460), (1140, 150537), (1251, 137180), (1390, 123462), (1444, 118845), (1668, 102885), (1710, 100358), (1805, 95076), (2085, 82308), (2166, 79230), (2502, 68590), (2641, 64980), (2780, 61731), (3249, 52820), (3420, 50179), (3610, 47538), (4170, 41154), (4332, 39615), (5004, 34295), (5282, 32490), (5415, 31692), (6255, 27436), (6498, 26410), (6859, 25020), (7220, 23769), (7923, 21660), (8340, 20577), (10564, 16245), (10830, 15846), (12510, 13718), (12996, 13205)]