161393440

素因数分解:

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

素因数の和:2562

約数の個数: 96

約数和(自身を含む): 424037376

約数和(自身を除く): 262643936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 403, 416, 496, 520, 620, 806, 992, 1040, 1240, 1612, 2015, 2080, 2480, 2503, 3224, 4030, 4960, 5006, 6448, 8060, 10012, 12515, 12896, 16120, 20024, 25030, 32240, 32539, 40048, 50060, 64480, 65078, 77593, 80096, 100120, 130156, 155186, 162695, 200240, 260312, 310372, 325390, 387965, 400480, 520624, 620744, 650780, 775930, 1008709, 1041248, 1241488, 1301560, 1551860, 2017418, 2482976, 2603120, 3103720, 4034836, 5043545, 5206240, 6207440, 8069672, 10087090, 12414880, 16139344, 20174180, 32278688, 40348360, 80696720, 161393440]

約数ペア:

[(1, 161393440), (2, 80696720), (4, 40348360), (5, 32278688), (8, 20174180), (10, 16139344), (13, 12414880), (16, 10087090), (20, 8069672), (26, 6207440), (31, 5206240), (32, 5043545), (40, 4034836), (52, 3103720), (62, 2603120), (65, 2482976), (80, 2017418), (104, 1551860), (124, 1301560), (130, 1241488), (155, 1041248), (160, 1008709), (208, 775930), (248, 650780), (260, 620744), (310, 520624), (403, 400480), (416, 387965), (496, 325390), (520, 310372), (620, 260312), (806, 200240), (992, 162695), (1040, 155186), (1240, 130156), (1612, 100120), (2015, 80096), (2080, 77593), (2480, 65078), (2503, 64480), (3224, 50060), (4030, 40048), (4960, 32539), (5006, 32240), (6448, 25030), (8060, 20024), (10012, 16120), (12515, 12896)]