28971390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:226

約数の個数: 128

約数和(自身を含む): 85847040

約数和(自身を除く): 56875650

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 53, 57, 70, 95, 105, 106, 114, 133, 137, 159, 190, 210, 265, 266, 274, 285, 318, 371, 399, 411, 530, 570, 665, 685, 742, 795, 798, 822, 959, 1007, 1113, 1330, 1370, 1590, 1855, 1918, 1995, 2014, 2055, 2226, 2603, 2877, 3021, 3710, 3990, 4110, 4795, 5035, 5206, 5565, 5754, 6042, 7049, 7261, 7809, 9590, 10070, 11130, 13015, 14098, 14385, 14522, 15105, 15618, 18221, 21147, 21783, 26030, 28770, 30210, 35245, 36305, 36442, 39045, 42294, 43566, 50827, 54663, 70490, 72610, 78090, 91105, 101654, 105735, 108915, 109326, 137959, 152481, 182210, 211470, 217830, 254135, 273315, 275918, 304962, 413877, 508270, 546630, 689795, 762405, 827754, 965713, 1379590, 1524810, 1931426, 2069385, 2897139, 4138770, 4828565, 5794278, 9657130, 14485695, 28971390]

約数ペア:

[(1, 28971390), (2, 14485695), (3, 9657130), (5, 5794278), (6, 4828565), (7, 4138770), (10, 2897139), (14, 2069385), (15, 1931426), (19, 1524810), (21, 1379590), (30, 965713), (35, 827754), (38, 762405), (42, 689795), (53, 546630), (57, 508270), (70, 413877), (95, 304962), (105, 275918), (106, 273315), (114, 254135), (133, 217830), (137, 211470), (159, 182210), (190, 152481), (210, 137959), (265, 109326), (266, 108915), (274, 105735), (285, 101654), (318, 91105), (371, 78090), (399, 72610), (411, 70490), (530, 54663), (570, 50827), (665, 43566), (685, 42294), (742, 39045), (795, 36442), (798, 36305), (822, 35245), (959, 30210), (1007, 28770), (1113, 26030), (1330, 21783), (1370, 21147), (1590, 18221), (1855, 15618), (1918, 15105), (1995, 14522), (2014, 14385), (2055, 14098), (2226, 13015), (2603, 11130), (2877, 10070), (3021, 9590), (3710, 7809), (3990, 7261), (4110, 7049), (4795, 6042), (5035, 5754), (5206, 5565)]