256414020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{4447}}^1$

素因数の和:4521

約数の個数: 72

約数和(自身を含む): 742033152

約数和(自身を除く): 485619132

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 961, 1860, 1922, 2883, 3844, 4447, 4805, 5766, 8894, 9610, 11532, 13341, 14415, 17788, 19220, 22235, 26682, 28830, 44470, 53364, 57660, 66705, 88940, 133410, 137857, 266820, 275714, 413571, 551428, 689285, 827142, 1378570, 1654284, 2067855, 2757140, 4135710, 4273567, 8271420, 8547134, 12820701, 17094268, 21367835, 25641402, 42735670, 51282804, 64103505, 85471340, 128207010, 256414020]

約数ペア:

[(1, 256414020), (2, 128207010), (3, 85471340), (4, 64103505), (5, 51282804), (6, 42735670), (10, 25641402), (12, 21367835), (15, 17094268), (20, 12820701), (30, 8547134), (31, 8271420), (60, 4273567), (62, 4135710), (93, 2757140), (124, 2067855), (155, 1654284), (186, 1378570), (310, 827142), (372, 689285), (465, 551428), (620, 413571), (930, 275714), (961, 266820), (1860, 137857), (1922, 133410), (2883, 88940), (3844, 66705), (4447, 57660), (4805, 53364), (5766, 44470), (8894, 28830), (9610, 26682), (11532, 22235), (13341, 19220), (14415, 17788)]