79139900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:580

約数の個数: 108

約数和(自身を含む): 206611776

約数和(自身を除く): 127471876

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 49, 50, 62, 70, 98, 100, 124, 140, 155, 175, 196, 217, 245, 310, 350, 434, 490, 521, 620, 700, 775, 868, 980, 1042, 1085, 1225, 1519, 1550, 2084, 2170, 2450, 2605, 3038, 3100, 3647, 4340, 4900, 5210, 5425, 6076, 7294, 7595, 10420, 10850, 13025, 14588, 15190, 16151, 18235, 21700, 25529, 26050, 30380, 32302, 36470, 37975, 51058, 52100, 64604, 72940, 75950, 80755, 91175, 102116, 113057, 127645, 151900, 161510, 182350, 226114, 255290, 323020, 364700, 403775, 452228, 510580, 565285, 638225, 791399, 807550, 1130570, 1276450, 1582798, 1615100, 2261140, 2552900, 2826425, 3165596, 3956995, 5652850, 7913990, 11305700, 15827980, 19784975, 39569950, 79139900]

約数ペア:

[(1, 79139900), (2, 39569950), (4, 19784975), (5, 15827980), (7, 11305700), (10, 7913990), (14, 5652850), (20, 3956995), (25, 3165596), (28, 2826425), (31, 2552900), (35, 2261140), (49, 1615100), (50, 1582798), (62, 1276450), (70, 1130570), (98, 807550), (100, 791399), (124, 638225), (140, 565285), (155, 510580), (175, 452228), (196, 403775), (217, 364700), (245, 323020), (310, 255290), (350, 226114), (434, 182350), (490, 161510), (521, 151900), (620, 127645), (700, 113057), (775, 102116), (868, 91175), (980, 80755), (1042, 75950), (1085, 72940), (1225, 64604), (1519, 52100), (1550, 51058), (2084, 37975), (2170, 36470), (2450, 32302), (2605, 30380), (3038, 26050), (3100, 25529), (3647, 21700), (4340, 18235), (4900, 16151), (5210, 15190), (5425, 14588), (6076, 13025), (7294, 10850), (7595, 10420)]