87238340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20101}}^1$

素因数の和:20148

約数の個数: 48

約数和(自身を含む): 216136704

約数和(自身を除く): 128898364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 20101, 40202, 80404, 100505, 140707, 201010, 281414, 402020, 562828, 623131, 703535, 1246262, 1407070, 2492524, 2814140, 3115655, 4361917, 6231310, 8723834, 12462620, 17447668, 21809585, 43619170, 87238340]

約数ペア:

[(1, 87238340), (2, 43619170), (4, 21809585), (5, 17447668), (7, 12462620), (10, 8723834), (14, 6231310), (20, 4361917), (28, 3115655), (31, 2814140), (35, 2492524), (62, 1407070), (70, 1246262), (124, 703535), (140, 623131), (155, 562828), (217, 402020), (310, 281414), (434, 201010), (620, 140707), (868, 100505), (1085, 80404), (2170, 40202), (4340, 20101)]