128718540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{617}}^1$

素因数の和:712

約数の個数: 144

約数和(自身を含む): 418410720

約数和(自身を除く): 289692180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 61, 76, 90, 95, 114, 122, 171, 180, 183, 190, 228, 244, 285, 305, 342, 366, 380, 549, 570, 610, 617, 684, 732, 855, 915, 1098, 1140, 1159, 1220, 1234, 1710, 1830, 1851, 2196, 2318, 2468, 2745, 3085, 3420, 3477, 3660, 3702, 4636, 5490, 5553, 5795, 6170, 6954, 7404, 9255, 10431, 10980, 11106, 11590, 11723, 12340, 13908, 17385, 18510, 20862, 22212, 23180, 23446, 27765, 34770, 35169, 37020, 37637, 41724, 46892, 52155, 55530, 58615, 69540, 70338, 75274, 104310, 105507, 111060, 112911, 117230, 140676, 150548, 175845, 188185, 208620, 211014, 225822, 234460, 338733, 351690, 376370, 422028, 451644, 527535, 564555, 677466, 703380, 715103, 752740, 1055070, 1129110, 1354932, 1430206, 1693665, 2110140, 2145309, 2258220, 2860412, 3387330, 3575515, 4290618, 6435927, 6774660, 7151030, 8581236, 10726545, 12871854, 14302060, 21453090, 25743708, 32179635, 42906180, 64359270, 128718540]

約数ペア:

[(1, 128718540), (2, 64359270), (3, 42906180), (4, 32179635), (5, 25743708), (6, 21453090), (9, 14302060), (10, 12871854), (12, 10726545), (15, 8581236), (18, 7151030), (19, 6774660), (20, 6435927), (30, 4290618), (36, 3575515), (38, 3387330), (45, 2860412), (57, 2258220), (60, 2145309), (61, 2110140), (76, 1693665), (90, 1430206), (95, 1354932), (114, 1129110), (122, 1055070), (171, 752740), (180, 715103), (183, 703380), (190, 677466), (228, 564555), (244, 527535), (285, 451644), (305, 422028), (342, 376370), (366, 351690), (380, 338733), (549, 234460), (570, 225822), (610, 211014), (617, 208620), (684, 188185), (732, 175845), (855, 150548), (915, 140676), (1098, 117230), (1140, 112911), (1159, 111060), (1220, 105507), (1234, 104310), (1710, 75274), (1830, 70338), (1851, 69540), (2196, 58615), (2318, 55530), (2468, 52155), (2745, 46892), (3085, 41724), (3420, 37637), (3477, 37020), (3660, 35169), (3702, 34770), (4636, 27765), (5490, 23446), (5553, 23180), (5795, 22212), (6170, 20862), (6954, 18510), (7404, 17385), (9255, 13908), (10431, 12340), (10980, 11723), (11106, 11590)]