1878441460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1277}}^1$

素因数の和:1398

約数の個数: 144

約数和(自身を含む): 4895251200

約数和(自身を除く): 3016809740

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 79, 95, 98, 133, 140, 158, 190, 196, 245, 266, 316, 380, 395, 490, 532, 553, 665, 790, 931, 980, 1106, 1277, 1330, 1501, 1580, 1862, 2212, 2554, 2660, 2765, 3002, 3724, 3871, 4655, 5108, 5530, 6004, 6385, 7505, 7742, 8939, 9310, 10507, 11060, 12770, 15010, 15484, 17878, 18620, 19355, 21014, 24263, 25540, 30020, 35756, 38710, 42028, 44695, 48526, 52535, 62573, 73549, 77420, 89390, 97052, 100883, 105070, 121315, 125146, 147098, 169841, 178780, 201766, 210140, 242630, 250292, 294196, 312865, 339682, 367745, 403532, 485260, 504415, 625730, 679364, 706181, 735490, 849205, 1008830, 1188887, 1251460, 1412362, 1470980, 1698410, 1916777, 2017660, 2377774, 2824724, 3396820, 3530905, 3833554, 4755548, 4943267, 5944435, 7061810, 7667108, 9583885, 9886534, 11888870, 13417439, 14123620, 19167770, 19773068, 23777740, 24716335, 26834878, 38335540, 49432670, 53669756, 67087195, 93922073, 98865340, 134174390, 187844146, 268348780, 375688292, 469610365, 939220730, 1878441460]

約数ペア:

[(1, 1878441460), (2, 939220730), (4, 469610365), (5, 375688292), (7, 268348780), (10, 187844146), (14, 134174390), (19, 98865340), (20, 93922073), (28, 67087195), (35, 53669756), (38, 49432670), (49, 38335540), (70, 26834878), (76, 24716335), (79, 23777740), (95, 19773068), (98, 19167770), (133, 14123620), (140, 13417439), (158, 11888870), (190, 9886534), (196, 9583885), (245, 7667108), (266, 7061810), (316, 5944435), (380, 4943267), (395, 4755548), (490, 3833554), (532, 3530905), (553, 3396820), (665, 2824724), (790, 2377774), (931, 2017660), (980, 1916777), (1106, 1698410), (1277, 1470980), (1330, 1412362), (1501, 1251460), (1580, 1188887), (1862, 1008830), (2212, 849205), (2554, 735490), (2660, 706181), (2765, 679364), (3002, 625730), (3724, 504415), (3871, 485260), (4655, 403532), (5108, 367745), (5530, 339682), (6004, 312865), (6385, 294196), (7505, 250292), (7742, 242630), (8939, 210140), (9310, 201766), (10507, 178780), (11060, 169841), (12770, 147098), (15010, 125146), (15484, 121315), (17878, 105070), (18620, 100883), (19355, 97052), (21014, 89390), (24263, 77420), (25540, 73549), (30020, 62573), (35756, 52535), (38710, 48526), (42028, 44695)]