64778985

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 115796304

約数和(自身を除く): 51017319

約数列:

[1, 3, 5, 9, 15, 45, 53, 157, 159, 173, 265, 471, 477, 519, 785, 795, 865, 1413, 1557, 2355, 2385, 2595, 7065, 7785, 8321, 9169, 24963, 27161, 27507, 41605, 45845, 74889, 81483, 82521, 124815, 135805, 137535, 244449, 374445, 407415, 412605, 1222245, 1439533, 4318599, 7197665, 12955797, 21592995, 64778985]

約数ペア:

[(1, 64778985), (3, 21592995), (5, 12955797), (9, 7197665), (15, 4318599), (45, 1439533), (53, 1222245), (157, 412605), (159, 407415), (173, 374445), (265, 244449), (471, 137535), (477, 135805), (519, 124815), (785, 82521), (795, 81483), (865, 74889), (1413, 45845), (1557, 41605), (2355, 27507), (2385, 27161), (2595, 24963), (7065, 9169), (7785, 8321)]