2783920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:142

約数の個数: 80

約数和(自身を含む): 7231680

約数和(自身を除く): 4447760

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 46, 68, 80, 85, 89, 92, 115, 136, 170, 178, 184, 230, 272, 340, 356, 368, 391, 445, 460, 680, 712, 782, 890, 920, 1360, 1424, 1513, 1564, 1780, 1840, 1955, 2047, 3026, 3128, 3560, 3910, 4094, 6052, 6256, 7120, 7565, 7820, 8188, 10235, 12104, 15130, 15640, 16376, 20470, 24208, 30260, 31280, 32752, 34799, 40940, 60520, 69598, 81880, 121040, 139196, 163760, 173995, 278392, 347990, 556784, 695980, 1391960, 2783920]

約数ペア:

[(1, 2783920), (2, 1391960), (4, 695980), (5, 556784), (8, 347990), (10, 278392), (16, 173995), (17, 163760), (20, 139196), (23, 121040), (34, 81880), (40, 69598), (46, 60520), (68, 40940), (80, 34799), (85, 32752), (89, 31280), (92, 30260), (115, 24208), (136, 20470), (170, 16376), (178, 15640), (184, 15130), (230, 12104), (272, 10235), (340, 8188), (356, 7820), (368, 7565), (391, 7120), (445, 6256), (460, 6052), (680, 4094), (712, 3910), (782, 3560), (890, 3128), (920, 3026), (1360, 2047), (1424, 1955), (1513, 1840), (1564, 1780)]