78167740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^2\times {\mathrm{83}}^1$

素因数の和:168

約数の個数: 108

約数和(自身を含む): 199688328

約数和(自身を除く): 121520588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 83, 98, 124, 140, 155, 166, 196, 217, 245, 310, 332, 415, 434, 490, 581, 620, 830, 868, 961, 980, 1085, 1162, 1519, 1660, 1922, 2170, 2324, 2573, 2905, 3038, 3844, 4067, 4340, 4805, 5146, 5810, 6076, 6727, 7595, 8134, 9610, 10292, 11620, 12865, 13454, 15190, 16268, 18011, 19220, 20335, 25730, 26908, 30380, 33635, 36022, 40670, 47089, 51460, 67270, 72044, 79763, 81340, 90055, 94178, 126077, 134540, 159526, 180110, 188356, 235445, 252154, 319052, 360220, 398815, 470890, 504308, 558341, 630385, 797630, 941780, 1116682, 1260770, 1595260, 2233364, 2521540, 2791705, 3908387, 5583410, 7816774, 11166820, 15633548, 19541935, 39083870, 78167740]

約数ペア:

[(1, 78167740), (2, 39083870), (4, 19541935), (5, 15633548), (7, 11166820), (10, 7816774), (14, 5583410), (20, 3908387), (28, 2791705), (31, 2521540), (35, 2233364), (49, 1595260), (62, 1260770), (70, 1116682), (83, 941780), (98, 797630), (124, 630385), (140, 558341), (155, 504308), (166, 470890), (196, 398815), (217, 360220), (245, 319052), (310, 252154), (332, 235445), (415, 188356), (434, 180110), (490, 159526), (581, 134540), (620, 126077), (830, 94178), (868, 90055), (961, 81340), (980, 79763), (1085, 72044), (1162, 67270), (1519, 51460), (1660, 47089), (1922, 40670), (2170, 36022), (2324, 33635), (2573, 30380), (2905, 26908), (3038, 25730), (3844, 20335), (4067, 19220), (4340, 18011), (4805, 16268), (5146, 15190), (5810, 13454), (6076, 12865), (6727, 11620), (7595, 10292), (8134, 9610)]