28979880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:219

約数の個数: 128

約数和(自身を含む): 91601280

約数和(自身を除く): 62621400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 61, 74, 107, 111, 120, 122, 148, 183, 185, 214, 222, 244, 296, 305, 321, 366, 370, 428, 444, 488, 535, 555, 610, 642, 732, 740, 856, 888, 915, 1070, 1110, 1220, 1284, 1464, 1480, 1605, 1830, 2140, 2220, 2257, 2440, 2568, 3210, 3660, 3959, 4280, 4440, 4514, 6420, 6527, 6771, 7320, 7918, 9028, 11285, 11877, 12840, 13054, 13542, 15836, 18056, 19581, 19795, 22570, 23754, 26108, 27084, 31672, 32635, 33855, 39162, 39590, 45140, 47508, 52216, 54168, 59385, 65270, 67710, 78324, 79180, 90280, 95016, 97905, 118770, 130540, 135420, 156648, 158360, 195810, 237540, 241499, 261080, 270840, 391620, 475080, 482998, 724497, 783240, 965996, 1207495, 1448994, 1931992, 2414990, 2897988, 3622485, 4829980, 5795976, 7244970, 9659960, 14489940, 28979880]

約数ペア:

[(1, 28979880), (2, 14489940), (3, 9659960), (4, 7244970), (5, 5795976), (6, 4829980), (8, 3622485), (10, 2897988), (12, 2414990), (15, 1931992), (20, 1448994), (24, 1207495), (30, 965996), (37, 783240), (40, 724497), (60, 482998), (61, 475080), (74, 391620), (107, 270840), (111, 261080), (120, 241499), (122, 237540), (148, 195810), (183, 158360), (185, 156648), (214, 135420), (222, 130540), (244, 118770), (296, 97905), (305, 95016), (321, 90280), (366, 79180), (370, 78324), (428, 67710), (444, 65270), (488, 59385), (535, 54168), (555, 52216), (610, 47508), (642, 45140), (732, 39590), (740, 39162), (856, 33855), (888, 32635), (915, 31672), (1070, 27084), (1110, 26108), (1220, 23754), (1284, 22570), (1464, 19795), (1480, 19581), (1605, 18056), (1830, 15836), (2140, 13542), (2220, 13054), (2257, 12840), (2440, 11877), (2568, 11285), (3210, 9028), (3660, 7918), (3959, 7320), (4280, 6771), (4440, 6527), (4514, 6420)]