128239860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{823}}^1$

素因数の和:902

約数の個数: 144

約数和(自身を含む): 426093696

約数和(自身を除く): 297853836

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 53, 60, 70, 84, 98, 105, 106, 140, 147, 159, 196, 210, 212, 245, 265, 294, 318, 371, 420, 490, 530, 588, 636, 735, 742, 795, 823, 980, 1060, 1113, 1470, 1484, 1590, 1646, 1855, 2226, 2469, 2597, 2940, 3180, 3292, 3710, 4115, 4452, 4938, 5194, 5565, 5761, 7420, 7791, 8230, 9876, 10388, 11130, 11522, 12345, 12985, 15582, 16460, 17283, 22260, 23044, 24690, 25970, 28805, 31164, 34566, 38955, 40327, 43619, 49380, 51940, 57610, 69132, 77910, 80654, 86415, 87238, 115220, 120981, 130857, 155820, 161308, 172830, 174476, 201635, 218095, 241962, 261714, 305333, 345660, 403270, 436190, 483924, 523428, 604905, 610666, 654285, 806540, 872380, 915999, 1209810, 1221332, 1308570, 1526665, 1831998, 2137331, 2419620, 2617140, 3053330, 3663996, 4274662, 4579995, 6106660, 6411993, 8549324, 9159990, 10686655, 12823986, 18319980, 21373310, 25647972, 32059965, 42746620, 64119930, 128239860]

約数ペア:

[(1, 128239860), (2, 64119930), (3, 42746620), (4, 32059965), (5, 25647972), (6, 21373310), (7, 18319980), (10, 12823986), (12, 10686655), (14, 9159990), (15, 8549324), (20, 6411993), (21, 6106660), (28, 4579995), (30, 4274662), (35, 3663996), (42, 3053330), (49, 2617140), (53, 2419620), (60, 2137331), (70, 1831998), (84, 1526665), (98, 1308570), (105, 1221332), (106, 1209810), (140, 915999), (147, 872380), (159, 806540), (196, 654285), (210, 610666), (212, 604905), (245, 523428), (265, 483924), (294, 436190), (318, 403270), (371, 345660), (420, 305333), (490, 261714), (530, 241962), (588, 218095), (636, 201635), (735, 174476), (742, 172830), (795, 161308), (823, 155820), (980, 130857), (1060, 120981), (1113, 115220), (1470, 87238), (1484, 86415), (1590, 80654), (1646, 77910), (1855, 69132), (2226, 57610), (2469, 51940), (2597, 49380), (2940, 43619), (3180, 40327), (3292, 38955), (3710, 34566), (4115, 31164), (4452, 28805), (4938, 25970), (5194, 24690), (5565, 23044), (5761, 22260), (7420, 17283), (7791, 16460), (8230, 15582), (9876, 12985), (10388, 12345), (11130, 11522)]