80415860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2647}}^1$

素因数の和:2701

約数の個数: 72

約数和(自身を含む): 202857984

約数和(自身を除く): 122442124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 434, 490, 620, 868, 980, 1085, 1519, 2170, 2647, 3038, 4340, 5294, 6076, 7595, 10588, 13235, 15190, 18529, 26470, 30380, 37058, 52940, 74116, 82057, 92645, 129703, 164114, 185290, 259406, 328228, 370580, 410285, 518812, 574399, 648515, 820570, 1148798, 1297030, 1641140, 2297596, 2594060, 2871995, 4020793, 5743990, 8041586, 11487980, 16083172, 20103965, 40207930, 80415860]

約数ペア:

[(1, 80415860), (2, 40207930), (4, 20103965), (5, 16083172), (7, 11487980), (10, 8041586), (14, 5743990), (20, 4020793), (28, 2871995), (31, 2594060), (35, 2297596), (49, 1641140), (62, 1297030), (70, 1148798), (98, 820570), (124, 648515), (140, 574399), (155, 518812), (196, 410285), (217, 370580), (245, 328228), (310, 259406), (434, 185290), (490, 164114), (620, 129703), (868, 92645), (980, 82057), (1085, 74116), (1519, 52940), (2170, 37058), (2647, 30380), (3038, 26470), (4340, 18529), (5294, 15190), (6076, 13235), (7595, 10588)]