65371121660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{261631}}^1$

素因数の和:261715

約数の個数: 72

約数和(自身を含む): 152762738688

約数和(自身を除く): 87391617028

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 961, 1612, 1922, 2015, 3844, 4030, 4805, 8060, 9610, 12493, 19220, 24986, 49972, 62465, 124930, 249860, 261631, 523262, 1046524, 1308155, 2616310, 3401203, 5232620, 6802406, 8110561, 13604812, 16221122, 17006015, 32442244, 34012030, 40552805, 68024060, 81105610, 105437293, 162211220, 210874586, 251427391, 421749172, 502854782, 527186465, 1005709564, 1054372930, 1257136955, 2108745860, 2514273910, 3268556083, 5028547820, 6537112166, 13074224332, 16342780415, 32685560830, 65371121660]

約数ペア:

[(1, 65371121660), (2, 32685560830), (4, 16342780415), (5, 13074224332), (10, 6537112166), (13, 5028547820), (20, 3268556083), (26, 2514273910), (31, 2108745860), (52, 1257136955), (62, 1054372930), (65, 1005709564), (124, 527186465), (130, 502854782), (155, 421749172), (260, 251427391), (310, 210874586), (403, 162211220), (620, 105437293), (806, 81105610), (961, 68024060), (1612, 40552805), (1922, 34012030), (2015, 32442244), (3844, 17006015), (4030, 16221122), (4805, 13604812), (8060, 8110561), (9610, 6802406), (12493, 5232620), (19220, 3401203), (24986, 2616310), (49972, 1308155), (62465, 1046524), (124930, 523262), (249860, 261631)]