205442580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{509}}^1$

素因数の和:590

約数の個数: 144

約数和(自身を含む): 680641920

約数和(自身を除く): 475199340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 509, 620, 651, 868, 930, 961, 1018, 1085, 1302, 1527, 1860, 1922, 2036, 2170, 2545, 2604, 2883, 3054, 3255, 3563, 3844, 4340, 4805, 5090, 5766, 6108, 6510, 6727, 7126, 7635, 9610, 10180, 10689, 11532, 13020, 13454, 14252, 14415, 15270, 15779, 17815, 19220, 20181, 21378, 26908, 28830, 30540, 31558, 33635, 35630, 40362, 42756, 47337, 53445, 57660, 63116, 67270, 71260, 78895, 80724, 94674, 100905, 106890, 110453, 134540, 157790, 189348, 201810, 213780, 220906, 236685, 315580, 331359, 403620, 441812, 473370, 489149, 552265, 662718, 946740, 978298, 1104530, 1325436, 1467447, 1656795, 1956596, 2209060, 2445745, 2934894, 3313590, 3424043, 4891490, 5869788, 6627180, 6848086, 7337235, 9782980, 10272129, 13696172, 14674470, 17120215, 20544258, 29348940, 34240430, 41088516, 51360645, 68480860, 102721290, 205442580]

約数ペア:

[(1, 205442580), (2, 102721290), (3, 68480860), (4, 51360645), (5, 41088516), (6, 34240430), (7, 29348940), (10, 20544258), (12, 17120215), (14, 14674470), (15, 13696172), (20, 10272129), (21, 9782980), (28, 7337235), (30, 6848086), (31, 6627180), (35, 5869788), (42, 4891490), (60, 3424043), (62, 3313590), (70, 2934894), (84, 2445745), (93, 2209060), (105, 1956596), (124, 1656795), (140, 1467447), (155, 1325436), (186, 1104530), (210, 978298), (217, 946740), (310, 662718), (372, 552265), (420, 489149), (434, 473370), (465, 441812), (509, 403620), (620, 331359), (651, 315580), (868, 236685), (930, 220906), (961, 213780), (1018, 201810), (1085, 189348), (1302, 157790), (1527, 134540), (1860, 110453), (1922, 106890), (2036, 100905), (2170, 94674), (2545, 80724), (2604, 78895), (2883, 71260), (3054, 67270), (3255, 63116), (3563, 57660), (3844, 53445), (4340, 47337), (4805, 42756), (5090, 40362), (5766, 35630), (6108, 33635), (6510, 31558), (6727, 30540), (7126, 28830), (7635, 26908), (9610, 21378), (10180, 20181), (10689, 19220), (11532, 17815), (13020, 15779), (13454, 15270), (14252, 14415)]