277303990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:445

約数の個数: 64

約数和(自身を含む): 536481792

約数和(自身を除く): 259177802

約数列:

[1, 2, 5, 10, 31, 43, 62, 71, 86, 142, 155, 215, 293, 310, 355, 430, 586, 710, 1333, 1465, 2201, 2666, 2930, 3053, 4402, 6106, 6665, 9083, 11005, 12599, 13330, 15265, 18166, 20803, 22010, 25198, 30530, 41606, 45415, 62995, 90830, 94643, 104015, 125990, 189286, 208030, 390569, 473215, 644893, 781138, 894529, 946430, 1289786, 1789058, 1952845, 3224465, 3905690, 4472645, 6448930, 8945290, 27730399, 55460798, 138651995, 277303990]

約数ペア:

[(1, 277303990), (2, 138651995), (5, 55460798), (10, 27730399), (31, 8945290), (43, 6448930), (62, 4472645), (71, 3905690), (86, 3224465), (142, 1952845), (155, 1789058), (215, 1289786), (293, 946430), (310, 894529), (355, 781138), (430, 644893), (586, 473215), (710, 390569), (1333, 208030), (1465, 189286), (2201, 125990), (2666, 104015), (2930, 94643), (3053, 90830), (4402, 62995), (6106, 45415), (6665, 41606), (9083, 30530), (11005, 25198), (12599, 22010), (13330, 20803), (15265, 18166)]