18140790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:525

約数の個数: 64

約数和(自身を含む): 46282752

約数和(自身を除く): 28141962

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 61, 69, 115, 122, 138, 183, 230, 305, 345, 366, 431, 610, 690, 862, 915, 1293, 1403, 1830, 2155, 2586, 2806, 4209, 4310, 6465, 7015, 8418, 9913, 12930, 14030, 19826, 21045, 26291, 29739, 42090, 49565, 52582, 59478, 78873, 99130, 131455, 148695, 157746, 262910, 297390, 394365, 604693, 788730, 1209386, 1814079, 3023465, 3628158, 6046930, 9070395, 18140790]

約数ペア:

[(1, 18140790), (2, 9070395), (3, 6046930), (5, 3628158), (6, 3023465), (10, 1814079), (15, 1209386), (23, 788730), (30, 604693), (46, 394365), (61, 297390), (69, 262910), (115, 157746), (122, 148695), (138, 131455), (183, 99130), (230, 78873), (305, 59478), (345, 52582), (366, 49565), (431, 42090), (610, 29739), (690, 26291), (862, 21045), (915, 19826), (1293, 14030), (1403, 12930), (1830, 9913), (2155, 8418), (2586, 7015), (2806, 6465), (4209, 4310)]