1658847820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{20117}}^1$

素因数の和:20183

約数の個数: 96

約数和(自身を含む): 4326174720

約数和(自身を除く): 2667326900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 31, 35, 38, 62, 70, 76, 95, 124, 133, 140, 155, 190, 217, 266, 310, 380, 434, 532, 589, 620, 665, 868, 1085, 1178, 1330, 2170, 2356, 2660, 2945, 4123, 4340, 5890, 8246, 11780, 16492, 20117, 20615, 40234, 41230, 80468, 82460, 100585, 140819, 201170, 281638, 382223, 402340, 563276, 623627, 704095, 764446, 1247254, 1408190, 1528892, 1911115, 2494508, 2675561, 2816380, 3118135, 3822230, 4365389, 5351122, 6236270, 7644460, 8730778, 10702244, 11848913, 12472540, 13377805, 17461556, 21826945, 23697826, 26755610, 43653890, 47395652, 53511220, 59244565, 82942391, 87307780, 118489130, 165884782, 236978260, 331769564, 414711955, 829423910, 1658847820]

約数ペア:

[(1, 1658847820), (2, 829423910), (4, 414711955), (5, 331769564), (7, 236978260), (10, 165884782), (14, 118489130), (19, 87307780), (20, 82942391), (28, 59244565), (31, 53511220), (35, 47395652), (38, 43653890), (62, 26755610), (70, 23697826), (76, 21826945), (95, 17461556), (124, 13377805), (133, 12472540), (140, 11848913), (155, 10702244), (190, 8730778), (217, 7644460), (266, 6236270), (310, 5351122), (380, 4365389), (434, 3822230), (532, 3118135), (589, 2816380), (620, 2675561), (665, 2494508), (868, 1911115), (1085, 1528892), (1178, 1408190), (1330, 1247254), (2170, 764446), (2356, 704095), (2660, 623627), (2945, 563276), (4123, 402340), (4340, 382223), (5890, 281638), (8246, 201170), (11780, 140819), (16492, 100585), (20117, 82460), (20615, 80468), (40234, 41230)]