87307280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{809}}^1$

素因数の和:912

約数の個数: 80

約数和(自身を含む): 216950400

約数和(自身を除く): 129643120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 71, 76, 80, 95, 142, 152, 190, 284, 304, 355, 380, 568, 710, 760, 809, 1136, 1349, 1420, 1520, 1618, 2698, 2840, 3236, 4045, 5396, 5680, 6472, 6745, 8090, 10792, 12944, 13490, 15371, 16180, 21584, 26980, 30742, 32360, 53960, 57439, 61484, 64720, 76855, 107920, 114878, 122968, 153710, 229756, 245936, 287195, 307420, 459512, 574390, 614840, 919024, 1091341, 1148780, 1229680, 2182682, 2297560, 4365364, 4595120, 5456705, 8730728, 10913410, 17461456, 21826820, 43653640, 87307280]

約数ペア:

[(1, 87307280), (2, 43653640), (4, 21826820), (5, 17461456), (8, 10913410), (10, 8730728), (16, 5456705), (19, 4595120), (20, 4365364), (38, 2297560), (40, 2182682), (71, 1229680), (76, 1148780), (80, 1091341), (95, 919024), (142, 614840), (152, 574390), (190, 459512), (284, 307420), (304, 287195), (355, 245936), (380, 229756), (568, 153710), (710, 122968), (760, 114878), (809, 107920), (1136, 76855), (1349, 64720), (1420, 61484), (1520, 57439), (1618, 53960), (2698, 32360), (2840, 30742), (3236, 26980), (4045, 21584), (5396, 16180), (5680, 15371), (6472, 13490), (6745, 12944), (8090, 10792)]