80696720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2503}}^1$

素因数の和:2560

約数の個数: 80

約数和(自身を含む): 208653312

約数和(自身を除く): 127956592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 2503, 3224, 4030, 5006, 6448, 8060, 10012, 12515, 16120, 20024, 25030, 32240, 32539, 40048, 50060, 65078, 77593, 100120, 130156, 155186, 162695, 200240, 260312, 310372, 325390, 387965, 520624, 620744, 650780, 775930, 1008709, 1241488, 1301560, 1551860, 2017418, 2603120, 3103720, 4034836, 5043545, 6207440, 8069672, 10087090, 16139344, 20174180, 40348360, 80696720]

約数ペア:

[(1, 80696720), (2, 40348360), (4, 20174180), (5, 16139344), (8, 10087090), (10, 8069672), (13, 6207440), (16, 5043545), (20, 4034836), (26, 3103720), (31, 2603120), (40, 2017418), (52, 1551860), (62, 1301560), (65, 1241488), (80, 1008709), (104, 775930), (124, 650780), (130, 620744), (155, 520624), (208, 387965), (248, 325390), (260, 310372), (310, 260312), (403, 200240), (496, 162695), (520, 155186), (620, 130156), (806, 100120), (1040, 77593), (1240, 65078), (1612, 50060), (2015, 40048), (2480, 32539), (2503, 32240), (3224, 25030), (4030, 20024), (5006, 16120), (6448, 12515), (8060, 10012)]