16778320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1$

素因数の和:129

約数の個数: 120

約数和(自身を含む): 45338616

約数和(自身を除く): 28560296

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 73, 80, 85, 104, 130, 136, 146, 169, 170, 208, 221, 260, 272, 292, 338, 340, 365, 442, 520, 584, 676, 680, 730, 845, 884, 949, 1040, 1105, 1168, 1241, 1352, 1360, 1460, 1690, 1768, 1898, 2210, 2482, 2704, 2873, 2920, 3380, 3536, 3796, 4420, 4745, 4964, 5746, 5840, 6205, 6760, 7592, 8840, 9490, 9928, 11492, 12337, 12410, 13520, 14365, 15184, 16133, 17680, 18980, 19856, 22984, 24674, 24820, 28730, 32266, 37960, 45968, 49348, 49640, 57460, 61685, 64532, 75920, 80665, 98696, 99280, 114920, 123370, 129064, 161330, 197392, 209729, 229840, 246740, 258128, 322660, 419458, 493480, 645320, 838916, 986960, 1048645, 1290640, 1677832, 2097290, 3355664, 4194580, 8389160, 16778320]

約数ペア:

[(1, 16778320), (2, 8389160), (4, 4194580), (5, 3355664), (8, 2097290), (10, 1677832), (13, 1290640), (16, 1048645), (17, 986960), (20, 838916), (26, 645320), (34, 493480), (40, 419458), (52, 322660), (65, 258128), (68, 246740), (73, 229840), (80, 209729), (85, 197392), (104, 161330), (130, 129064), (136, 123370), (146, 114920), (169, 99280), (170, 98696), (208, 80665), (221, 75920), (260, 64532), (272, 61685), (292, 57460), (338, 49640), (340, 49348), (365, 45968), (442, 37960), (520, 32266), (584, 28730), (676, 24820), (680, 24674), (730, 22984), (845, 19856), (884, 18980), (949, 17680), (1040, 16133), (1105, 15184), (1168, 14365), (1241, 13520), (1352, 12410), (1360, 12337), (1460, 11492), (1690, 9928), (1768, 9490), (1898, 8840), (2210, 7592), (2482, 6760), (2704, 6205), (2873, 5840), (2920, 5746), (3380, 4964), (3536, 4745), (3796, 4420)]