5120440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 12751200

約数和(自身を除く): 7630760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 229, 260, 344, 430, 458, 520, 559, 860, 916, 1118, 1145, 1720, 1832, 2236, 2290, 2795, 2977, 4472, 4580, 5590, 5954, 9160, 9847, 11180, 11908, 14885, 19694, 22360, 23816, 29770, 39388, 49235, 59540, 78776, 98470, 119080, 128011, 196940, 256022, 393880, 512044, 640055, 1024088, 1280110, 2560220, 5120440]

約数ペア:

[(1, 5120440), (2, 2560220), (4, 1280110), (5, 1024088), (8, 640055), (10, 512044), (13, 393880), (20, 256022), (26, 196940), (40, 128011), (43, 119080), (52, 98470), (65, 78776), (86, 59540), (104, 49235), (130, 39388), (172, 29770), (215, 23816), (229, 22360), (260, 19694), (344, 14885), (430, 11908), (458, 11180), (520, 9847), (559, 9160), (860, 5954), (916, 5590), (1118, 4580), (1145, 4472), (1720, 2977), (1832, 2795), (2236, 2290)]