28194810

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:180

約数の個数: 128

約数和(自身を含む): 82280448

約数和(自身を除く): 54085638

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 61, 62, 70, 71, 93, 105, 122, 142, 155, 183, 186, 210, 213, 217, 305, 310, 355, 366, 426, 427, 434, 465, 497, 610, 651, 710, 854, 915, 930, 994, 1065, 1085, 1281, 1302, 1491, 1830, 1891, 2130, 2135, 2170, 2201, 2485, 2562, 2982, 3255, 3782, 4270, 4331, 4402, 4970, 5673, 6405, 6510, 6603, 7455, 8662, 9455, 11005, 11346, 12810, 12993, 13206, 13237, 14910, 15407, 18910, 21655, 22010, 25986, 26474, 28365, 30317, 30814, 33015, 39711, 43310, 46221, 56730, 60634, 64965, 66030, 66185, 77035, 79422, 90951, 92442, 129930, 132370, 134261, 151585, 154070, 181902, 198555, 231105, 268522, 303170, 397110, 402783, 454755, 462210, 671305, 805566, 909510, 939827, 1342610, 1879654, 2013915, 2819481, 4027830, 4699135, 5638962, 9398270, 14097405, 28194810]

約数ペア:

[(1, 28194810), (2, 14097405), (3, 9398270), (5, 5638962), (6, 4699135), (7, 4027830), (10, 2819481), (14, 2013915), (15, 1879654), (21, 1342610), (30, 939827), (31, 909510), (35, 805566), (42, 671305), (61, 462210), (62, 454755), (70, 402783), (71, 397110), (93, 303170), (105, 268522), (122, 231105), (142, 198555), (155, 181902), (183, 154070), (186, 151585), (210, 134261), (213, 132370), (217, 129930), (305, 92442), (310, 90951), (355, 79422), (366, 77035), (426, 66185), (427, 66030), (434, 64965), (465, 60634), (497, 56730), (610, 46221), (651, 43310), (710, 39711), (854, 33015), (915, 30814), (930, 30317), (994, 28365), (1065, 26474), (1085, 25986), (1281, 22010), (1302, 21655), (1491, 18910), (1830, 15407), (1891, 14910), (2130, 13237), (2135, 13206), (2170, 12993), (2201, 12810), (2485, 11346), (2562, 11005), (2982, 9455), (3255, 8662), (3782, 7455), (4270, 6603), (4331, 6510), (4402, 6405), (4970, 5673)]