987350

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:70

約数の個数: 72

約数和(自身を含む): 2374848

約数和(自身を除く): 1387498

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 31, 35, 49, 50, 62, 65, 70, 91, 98, 130, 155, 175, 182, 217, 245, 310, 325, 350, 403, 434, 455, 490, 637, 650, 775, 806, 910, 1085, 1225, 1274, 1519, 1550, 2015, 2170, 2275, 2450, 2821, 3038, 3185, 4030, 4550, 5425, 5642, 6370, 7595, 10075, 10850, 14105, 15190, 15925, 19747, 20150, 28210, 31850, 37975, 39494, 70525, 75950, 98735, 141050, 197470, 493675, 987350]

約数ペア:

[(1, 987350), (2, 493675), (5, 197470), (7, 141050), (10, 98735), (13, 75950), (14, 70525), (25, 39494), (26, 37975), (31, 31850), (35, 28210), (49, 20150), (50, 19747), (62, 15925), (65, 15190), (70, 14105), (91, 10850), (98, 10075), (130, 7595), (155, 6370), (175, 5642), (182, 5425), (217, 4550), (245, 4030), (310, 3185), (325, 3038), (350, 2821), (403, 2450), (434, 2275), (455, 2170), (490, 2015), (637, 1550), (650, 1519), (775, 1274), (806, 1225), (910, 1085)]