254916540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{3923}}^1$

素因数の和:3976

約数の個数: 108

約数和(自身を含む): 816294024

約数和(自身を除く): 561377484

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 361, 380, 570, 684, 722, 855, 1083, 1140, 1444, 1710, 1805, 2166, 3249, 3420, 3610, 3923, 4332, 5415, 6498, 7220, 7846, 10830, 11769, 12996, 15692, 16245, 19615, 21660, 23538, 32490, 35307, 39230, 47076, 58845, 64980, 70614, 74537, 78460, 117690, 141228, 149074, 176535, 223611, 235380, 298148, 353070, 372685, 447222, 670833, 706140, 745370, 894444, 1118055, 1341666, 1416203, 1490740, 2236110, 2683332, 2832406, 3354165, 4248609, 4472220, 5664812, 6708330, 7081015, 8497218, 12745827, 13416660, 14162030, 16994436, 21243045, 25491654, 28324060, 42486090, 50983308, 63729135, 84972180, 127458270, 254916540]

約数ペア:

[(1, 254916540), (2, 127458270), (3, 84972180), (4, 63729135), (5, 50983308), (6, 42486090), (9, 28324060), (10, 25491654), (12, 21243045), (15, 16994436), (18, 14162030), (19, 13416660), (20, 12745827), (30, 8497218), (36, 7081015), (38, 6708330), (45, 5664812), (57, 4472220), (60, 4248609), (76, 3354165), (90, 2832406), (95, 2683332), (114, 2236110), (171, 1490740), (180, 1416203), (190, 1341666), (228, 1118055), (285, 894444), (342, 745370), (361, 706140), (380, 670833), (570, 447222), (684, 372685), (722, 353070), (855, 298148), (1083, 235380), (1140, 223611), (1444, 176535), (1710, 149074), (1805, 141228), (2166, 117690), (3249, 78460), (3420, 74537), (3610, 70614), (3923, 64980), (4332, 58845), (5415, 47076), (6498, 39230), (7220, 35307), (7846, 32490), (10830, 23538), (11769, 21660), (12996, 19615), (15692, 16245)]