71557420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1$

素因数の和:128

約数の個数: 144

約数和(自身を含む): 186647328

約数和(自身を除く): 115089908

約数列:

[1, 2, 4, 5, 10, 11, 17, 19, 20, 22, 34, 38, 44, 53, 55, 68, 76, 85, 95, 106, 110, 170, 187, 190, 209, 212, 220, 265, 323, 340, 361, 374, 380, 418, 530, 583, 646, 722, 748, 836, 901, 935, 1007, 1045, 1060, 1166, 1292, 1444, 1615, 1802, 1805, 1870, 2014, 2090, 2332, 2915, 3230, 3553, 3604, 3610, 3740, 3971, 4028, 4180, 4505, 5035, 5830, 6137, 6460, 7106, 7220, 7942, 9010, 9911, 10070, 11077, 11660, 12274, 14212, 15884, 17119, 17765, 18020, 19133, 19822, 19855, 20140, 22154, 24548, 30685, 34238, 35530, 38266, 39644, 39710, 44308, 49555, 55385, 61370, 67507, 68476, 71060, 76532, 79420, 85595, 95665, 99110, 110770, 122740, 135014, 171190, 188309, 191330, 198220, 210463, 221540, 270028, 325261, 337535, 342380, 376618, 382660, 420926, 650522, 675070, 753236, 841852, 941545, 1052315, 1301044, 1350140, 1626305, 1883090, 2104630, 3252610, 3577871, 3766180, 4209260, 6505220, 7155742, 14311484, 17889355, 35778710, 71557420]

約数ペア:

[(1, 71557420), (2, 35778710), (4, 17889355), (5, 14311484), (10, 7155742), (11, 6505220), (17, 4209260), (19, 3766180), (20, 3577871), (22, 3252610), (34, 2104630), (38, 1883090), (44, 1626305), (53, 1350140), (55, 1301044), (68, 1052315), (76, 941545), (85, 841852), (95, 753236), (106, 675070), (110, 650522), (170, 420926), (187, 382660), (190, 376618), (209, 342380), (212, 337535), (220, 325261), (265, 270028), (323, 221540), (340, 210463), (361, 198220), (374, 191330), (380, 188309), (418, 171190), (530, 135014), (583, 122740), (646, 110770), (722, 99110), (748, 95665), (836, 85595), (901, 79420), (935, 76532), (1007, 71060), (1045, 68476), (1060, 67507), (1166, 61370), (1292, 55385), (1444, 49555), (1615, 44308), (1802, 39710), (1805, 39644), (1870, 38266), (2014, 35530), (2090, 34238), (2332, 30685), (2915, 24548), (3230, 22154), (3553, 20140), (3604, 19855), (3610, 19822), (3740, 19133), (3971, 18020), (4028, 17765), (4180, 17119), (4505, 15884), (5035, 14212), (5830, 12274), (6137, 11660), (6460, 11077), (7106, 10070), (7220, 9911), (7942, 9010)]