1387662340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{2707}}^1$

素因数の和:2825

約数の個数: 72

約数和(自身を含む): 3120005952

約数和(自身を除く): 1732343612

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 361, 380, 710, 722, 1349, 1420, 1444, 1805, 2698, 2707, 3610, 5396, 5414, 6745, 7220, 10828, 13490, 13535, 25631, 26980, 27070, 51262, 51433, 54140, 102524, 102866, 128155, 192197, 205732, 256310, 257165, 384394, 512620, 514330, 768788, 960985, 977227, 1028660, 1921970, 1954454, 3651743, 3843940, 3908908, 4886135, 7303486, 9772270, 14606972, 18258715, 19544540, 36517430, 69383117, 73034860, 138766234, 277532468, 346915585, 693831170, 1387662340]

約数ペア:

[(1, 1387662340), (2, 693831170), (4, 346915585), (5, 277532468), (10, 138766234), (19, 73034860), (20, 69383117), (38, 36517430), (71, 19544540), (76, 18258715), (95, 14606972), (142, 9772270), (190, 7303486), (284, 4886135), (355, 3908908), (361, 3843940), (380, 3651743), (710, 1954454), (722, 1921970), (1349, 1028660), (1420, 977227), (1444, 960985), (1805, 768788), (2698, 514330), (2707, 512620), (3610, 384394), (5396, 257165), (5414, 256310), (6745, 205732), (7220, 192197), (10828, 128155), (13490, 102866), (13535, 102524), (25631, 54140), (26980, 51433), (27070, 51262)]