289937080

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{3541}}^1$

素因数の和:3664

約数の個数: 64

約数和(自身を含む): 688564800

約数和(自身を除く): 398627720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 89, 92, 115, 178, 184, 230, 356, 445, 460, 712, 890, 920, 1780, 2047, 3541, 3560, 4094, 7082, 8188, 10235, 14164, 16376, 17705, 20470, 28328, 35410, 40940, 70820, 81443, 81880, 141640, 162886, 315149, 325772, 407215, 630298, 651544, 814430, 1260596, 1575745, 1628860, 2521192, 3151490, 3257720, 6302980, 7248427, 12605960, 14496854, 28993708, 36242135, 57987416, 72484270, 144968540, 289937080]

約数ペア:

[(1, 289937080), (2, 144968540), (4, 72484270), (5, 57987416), (8, 36242135), (10, 28993708), (20, 14496854), (23, 12605960), (40, 7248427), (46, 6302980), (89, 3257720), (92, 3151490), (115, 2521192), (178, 1628860), (184, 1575745), (230, 1260596), (356, 814430), (445, 651544), (460, 630298), (712, 407215), (890, 325772), (920, 315149), (1780, 162886), (2047, 141640), (3541, 81880), (3560, 81443), (4094, 70820), (7082, 40940), (8188, 35410), (10235, 28328), (14164, 20470), (16376, 17705)]