653663940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{640847}}^1$

素因数の和:640876

約数の個数: 48

約数和(自身を含む): 1937924352

約数和(自身を除く): 1284260412

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 640847, 1281694, 1922541, 2563388, 3204235, 3845082, 6408470, 7690164, 9612705, 10894399, 12816940, 19225410, 21788798, 32683197, 38450820, 43577596, 54471995, 65366394, 108943990, 130732788, 163415985, 217887980, 326831970, 653663940]

約数ペア:

[(1, 653663940), (2, 326831970), (3, 217887980), (4, 163415985), (5, 130732788), (6, 108943990), (10, 65366394), (12, 54471995), (15, 43577596), (17, 38450820), (20, 32683197), (30, 21788798), (34, 19225410), (51, 12816940), (60, 10894399), (68, 9612705), (85, 7690164), (102, 6408470), (170, 3845082), (204, 3204235), (255, 2563388), (340, 1922541), (510, 1281694), (1020, 640847)]