291214520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:313

約数の個数: 128

約数和(自身を含む): 727272000

約数和(自身を除く): 436057480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 38, 40, 58, 73, 76, 95, 116, 145, 146, 152, 181, 190, 232, 290, 292, 362, 365, 380, 551, 580, 584, 724, 730, 760, 905, 1102, 1160, 1387, 1448, 1460, 1810, 2117, 2204, 2755, 2774, 2920, 3439, 3620, 4234, 4408, 5249, 5510, 5548, 6878, 6935, 7240, 8468, 10498, 10585, 11020, 11096, 13213, 13756, 13870, 16936, 17195, 20996, 21170, 22040, 26245, 26426, 27512, 27740, 34390, 40223, 41992, 42340, 52490, 52852, 55480, 66065, 68780, 80446, 84680, 99731, 104980, 105704, 132130, 137560, 160892, 199462, 201115, 209960, 251047, 264260, 321784, 383177, 398924, 402230, 498655, 502094, 528520, 766354, 797848, 804460, 997310, 1004188, 1255235, 1532708, 1608920, 1915885, 1994620, 2008376, 2510470, 3065416, 3831770, 3989240, 5020940, 7280363, 7663540, 10041880, 14560726, 15327080, 29121452, 36401815, 58242904, 72803630, 145607260, 291214520]

約数ペア:

[(1, 291214520), (2, 145607260), (4, 72803630), (5, 58242904), (8, 36401815), (10, 29121452), (19, 15327080), (20, 14560726), (29, 10041880), (38, 7663540), (40, 7280363), (58, 5020940), (73, 3989240), (76, 3831770), (95, 3065416), (116, 2510470), (145, 2008376), (146, 1994620), (152, 1915885), (181, 1608920), (190, 1532708), (232, 1255235), (290, 1004188), (292, 997310), (362, 804460), (365, 797848), (380, 766354), (551, 528520), (580, 502094), (584, 498655), (724, 402230), (730, 398924), (760, 383177), (905, 321784), (1102, 264260), (1160, 251047), (1387, 209960), (1448, 201115), (1460, 199462), (1810, 160892), (2117, 137560), (2204, 132130), (2755, 105704), (2774, 104980), (2920, 99731), (3439, 84680), (3620, 80446), (4234, 68780), (4408, 66065), (5249, 55480), (5510, 52852), (5548, 52490), (6878, 42340), (6935, 41992), (7240, 40223), (8468, 34390), (10498, 27740), (10585, 27512), (11020, 26426), (11096, 26245), (13213, 22040), (13756, 21170), (13870, 20996), (16936, 17195)]