1990757496

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{661}}^1$

素因数の和:894

約数の個数: 192

約数和(自身を含む): 6275918880

約数和(自身を除く): 4285161384

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 49, 52, 56, 78, 84, 91, 98, 104, 147, 156, 168, 182, 196, 197, 273, 294, 312, 364, 392, 394, 546, 588, 591, 637, 661, 728, 788, 1092, 1176, 1182, 1274, 1322, 1379, 1576, 1911, 1983, 2184, 2364, 2548, 2561, 2644, 2758, 3822, 3966, 4137, 4627, 4728, 5096, 5122, 5288, 5516, 7644, 7683, 7932, 8274, 8593, 9254, 9653, 10244, 11032, 13881, 15288, 15366, 15864, 16548, 17186, 17927, 18508, 19306, 20488, 25779, 27762, 28959, 30732, 32389, 33096, 34372, 35854, 37016, 38612, 51558, 53781, 55524, 57918, 60151, 61464, 64778, 68744, 71708, 77224, 97167, 103116, 107562, 111048, 115836, 120302, 125489, 129556, 130217, 143416, 180453, 194334, 206232, 215124, 231672, 240604, 250978, 259112, 260434, 360906, 376467, 388668, 390651, 421057, 430248, 481208, 501956, 520868, 721812, 752934, 777336, 781302, 842114, 911519, 1003912, 1041736, 1263171, 1443624, 1505868, 1562604, 1684228, 1692821, 1823038, 2526342, 2734557, 3011736, 3125208, 3368456, 3385642, 3646076, 5052684, 5078463, 5469114, 6380633, 6771284, 7292152, 10105368, 10156926, 10938228, 11849747, 12761266, 13542568, 19141899, 20313852, 21876456, 23699494, 25522532, 35549241, 38283798, 40627704, 47398988, 51045064, 71098482, 76567596, 82948229, 94797976, 142196964, 153135192, 165896458, 248844687, 284393928, 331792916, 497689374, 663585832, 995378748, 1990757496]

約数ペア:

[(1, 1990757496), (2, 995378748), (3, 663585832), (4, 497689374), (6, 331792916), (7, 284393928), (8, 248844687), (12, 165896458), (13, 153135192), (14, 142196964), (21, 94797976), (24, 82948229), (26, 76567596), (28, 71098482), (39, 51045064), (42, 47398988), (49, 40627704), (52, 38283798), (56, 35549241), (78, 25522532), (84, 23699494), (91, 21876456), (98, 20313852), (104, 19141899), (147, 13542568), (156, 12761266), (168, 11849747), (182, 10938228), (196, 10156926), (197, 10105368), (273, 7292152), (294, 6771284), (312, 6380633), (364, 5469114), (392, 5078463), (394, 5052684), (546, 3646076), (588, 3385642), (591, 3368456), (637, 3125208), (661, 3011736), (728, 2734557), (788, 2526342), (1092, 1823038), (1176, 1692821), (1182, 1684228), (1274, 1562604), (1322, 1505868), (1379, 1443624), (1576, 1263171), (1911, 1041736), (1983, 1003912), (2184, 911519), (2364, 842114), (2548, 781302), (2561, 777336), (2644, 752934), (2758, 721812), (3822, 520868), (3966, 501956), (4137, 481208), (4627, 430248), (4728, 421057), (5096, 390651), (5122, 388668), (5288, 376467), (5516, 360906), (7644, 260434), (7683, 259112), (7932, 250978), (8274, 240604), (8593, 231672), (9254, 215124), (9653, 206232), (10244, 194334), (11032, 180453), (13881, 143416), (15288, 130217), (15366, 129556), (15864, 125489), (16548, 120302), (17186, 115836), (17927, 111048), (18508, 107562), (19306, 103116), (20488, 97167), (25779, 77224), (27762, 71708), (28959, 68744), (30732, 64778), (32389, 61464), (33096, 60151), (34372, 57918), (35854, 55524), (37016, 53781), (38612, 51558)]