645898760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{18539}}^1$

素因数の和:18630

約数の個数: 64

約数和(自身を含む): 1588507200

約数和(自身を除く): 942608440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 130, 134, 260, 268, 335, 520, 536, 670, 871, 1340, 1742, 2680, 3484, 4355, 6968, 8710, 17420, 18539, 34840, 37078, 74156, 92695, 148312, 185390, 241007, 370780, 482014, 741560, 964028, 1205035, 1242113, 1928056, 2410070, 2484226, 4820140, 4968452, 6210565, 9640280, 9936904, 12421130, 16147469, 24842260, 32294938, 49684520, 64589876, 80737345, 129179752, 161474690, 322949380, 645898760]

約数ペア:

[(1, 645898760), (2, 322949380), (4, 161474690), (5, 129179752), (8, 80737345), (10, 64589876), (13, 49684520), (20, 32294938), (26, 24842260), (40, 16147469), (52, 12421130), (65, 9936904), (67, 9640280), (104, 6210565), (130, 4968452), (134, 4820140), (260, 2484226), (268, 2410070), (335, 1928056), (520, 1242113), (536, 1205035), (670, 964028), (871, 741560), (1340, 482014), (1742, 370780), (2680, 241007), (3484, 185390), (4355, 148312), (6968, 92695), (8710, 74156), (17420, 37078), (18539, 34840)]