78420915

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4457}}^1$

素因数の和:4508

約数の個数: 48

約数和(自身を含む): 150216768

約数和(自身を除く): 71795853

約数列:

[1, 3, 5, 9, 15, 17, 23, 45, 51, 69, 85, 115, 153, 207, 255, 345, 391, 765, 1035, 1173, 1955, 3519, 4457, 5865, 13371, 17595, 22285, 40113, 66855, 75769, 102511, 200565, 227307, 307533, 378845, 512555, 681921, 922599, 1136535, 1537665, 1742687, 3409605, 4612995, 5228061, 8713435, 15684183, 26140305, 78420915]

約数ペア:

[(1, 78420915), (3, 26140305), (5, 15684183), (9, 8713435), (15, 5228061), (17, 4612995), (23, 3409605), (45, 1742687), (51, 1537665), (69, 1136535), (85, 922599), (115, 681921), (153, 512555), (207, 378845), (255, 307533), (345, 227307), (391, 200565), (765, 102511), (1035, 75769), (1173, 66855), (1955, 40113), (3519, 22285), (4457, 17595), (5865, 13371)]