1900387580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3469}}^1$

素因数の和:3548

約数の個数: 144

約数和(自身を含む): 5117222880

約数和(自身を除く): 3216835300

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 43, 49, 52, 65, 70, 86, 91, 98, 130, 140, 172, 182, 196, 215, 245, 260, 301, 364, 430, 455, 490, 559, 602, 637, 860, 910, 980, 1118, 1204, 1274, 1505, 1820, 2107, 2236, 2548, 2795, 3010, 3185, 3469, 3913, 4214, 5590, 6020, 6370, 6938, 7826, 8428, 10535, 11180, 12740, 13876, 15652, 17345, 19565, 21070, 24283, 27391, 34690, 39130, 42140, 45097, 48566, 54782, 69380, 78260, 90194, 97132, 109564, 121415, 136955, 149167, 169981, 180388, 225485, 242830, 273910, 298334, 315679, 339962, 450970, 485660, 547820, 596668, 631358, 679924, 745835, 849905, 901940, 1044169, 1262716, 1491670, 1578395, 1699810, 1939171, 2088338, 2209753, 2983340, 3156790, 3399620, 3878342, 4176676, 4419506, 5220845, 6313580, 7309183, 7756684, 8839012, 9695855, 10441690, 11048765, 13574197, 14618366, 19391710, 20883380, 22097530, 27148394, 29236732, 36545915, 38783420, 44195060, 54296788, 67870985, 73091830, 95019379, 135741970, 146183660, 190038758, 271483940, 380077516, 475096895, 950193790, 1900387580]

約数ペア:

[(1, 1900387580), (2, 950193790), (4, 475096895), (5, 380077516), (7, 271483940), (10, 190038758), (13, 146183660), (14, 135741970), (20, 95019379), (26, 73091830), (28, 67870985), (35, 54296788), (43, 44195060), (49, 38783420), (52, 36545915), (65, 29236732), (70, 27148394), (86, 22097530), (91, 20883380), (98, 19391710), (130, 14618366), (140, 13574197), (172, 11048765), (182, 10441690), (196, 9695855), (215, 8839012), (245, 7756684), (260, 7309183), (301, 6313580), (364, 5220845), (430, 4419506), (455, 4176676), (490, 3878342), (559, 3399620), (602, 3156790), (637, 2983340), (860, 2209753), (910, 2088338), (980, 1939171), (1118, 1699810), (1204, 1578395), (1274, 1491670), (1505, 1262716), (1820, 1044169), (2107, 901940), (2236, 849905), (2548, 745835), (2795, 679924), (3010, 631358), (3185, 596668), (3469, 547820), (3913, 485660), (4214, 450970), (5590, 339962), (6020, 315679), (6370, 298334), (6938, 273910), (7826, 242830), (8428, 225485), (10535, 180388), (11180, 169981), (12740, 149167), (13876, 136955), (15652, 121415), (17345, 109564), (19565, 97132), (21070, 90194), (24283, 78260), (27391, 69380), (34690, 54782), (39130, 48566), (42140, 45097)]