20187204975

素因数分解:

$3^2\times 5^2\times 7^3\times {\mathrm{261577}}^1$

素因数の和:261614

約数の個数: 72

約数和(自身を含む): 42166373600

約数和(自身を除く): 21979168625

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 63, 75, 105, 147, 175, 225, 245, 315, 343, 441, 525, 735, 1029, 1225, 1575, 1715, 2205, 3087, 3675, 5145, 8575, 11025, 15435, 25725, 77175, 261577, 784731, 1307885, 1831039, 2354193, 3923655, 5493117, 6539425, 9155195, 11770965, 12817273, 16479351, 19618275, 27465585, 38451819, 45775975, 58854825, 64086365, 82396755, 89720911, 115355457, 137327925, 192259095, 269162733, 320431825, 411983775, 448604555, 576777285, 807488199, 961295475, 1345813665, 2243022775, 2883886425, 4037440995, 6729068325, 20187204975]

約数ペア:

[(1, 20187204975), (3, 6729068325), (5, 4037440995), (7, 2883886425), (9, 2243022775), (15, 1345813665), (21, 961295475), (25, 807488199), (35, 576777285), (45, 448604555), (49, 411983775), (63, 320431825), (75, 269162733), (105, 192259095), (147, 137327925), (175, 115355457), (225, 89720911), (245, 82396755), (315, 64086365), (343, 58854825), (441, 45775975), (525, 38451819), (735, 27465585), (1029, 19618275), (1225, 16479351), (1575, 12817273), (1715, 11770965), (2205, 9155195), (3087, 6539425), (3675, 5493117), (5145, 3923655), (8575, 2354193), (11025, 1831039), (15435, 1307885), (25725, 784731), (77175, 261577)]