80215860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{78643}}^1$

素因数の和:78672

約数の個数: 48

約数和(自身を含む): 237819456

約数和(自身を除く): 157603596

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, 78643, 157286, 235929, 314572, 393215, 471858, 786430, 943716, 1179645, 1336931, 1572860, 2359290, 2673862, 4010793, 4718580, 5347724, 6684655, 8021586, 13369310, 16043172, 20053965, 26738620, 40107930, 80215860]

約数ペア:

[(1, 80215860), (2, 40107930), (3, 26738620), (4, 20053965), (5, 16043172), (6, 13369310), (10, 8021586), (12, 6684655), (15, 5347724), (17, 4718580), (20, 4010793), (30, 2673862), (34, 2359290), (51, 1572860), (60, 1336931), (68, 1179645), (85, 943716), (102, 786430), (170, 471858), (204, 393215), (255, 314572), (340, 235929), (510, 157286), (1020, 78643)]