31970115

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{79}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 62112960

約数和(自身を除く): 30142845

約数列:

[1, 3, 5, 9, 15, 17, 23, 45, 51, 69, 79, 85, 115, 153, 207, 237, 255, 345, 391, 395, 529, 711, 765, 1035, 1173, 1185, 1343, 1587, 1817, 1955, 2645, 3519, 3555, 4029, 4761, 5451, 5865, 6715, 7935, 8993, 9085, 12087, 16353, 17595, 20145, 23805, 26979, 27255, 30889, 41791, 44965, 60435, 80937, 81765, 92667, 125373, 134895, 154445, 208955, 278001, 376119, 404685, 463335, 626865, 710447, 1390005, 1880595, 2131341, 3552235, 6394023, 10656705, 31970115]

約数ペア:

[(1, 31970115), (3, 10656705), (5, 6394023), (9, 3552235), (15, 2131341), (17, 1880595), (23, 1390005), (45, 710447), (51, 626865), (69, 463335), (79, 404685), (85, 376119), (115, 278001), (153, 208955), (207, 154445), (237, 134895), (255, 125373), (345, 92667), (391, 81765), (395, 80937), (529, 60435), (711, 44965), (765, 41791), (1035, 30889), (1173, 27255), (1185, 26979), (1343, 23805), (1587, 20145), (1817, 17595), (1955, 16353), (2645, 12087), (3519, 9085), (3555, 8993), (4029, 7935), (4761, 6715), (5451, 5865)]