87291320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{347}}^1$

素因数の和:708

約数の個数: 64

約数和(自身を含む): 207964800

約数和(自身を除く): 120673480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 331, 347, 380, 662, 694, 760, 1324, 1388, 1655, 1735, 2648, 2776, 3310, 3470, 6289, 6593, 6620, 6940, 12578, 13186, 13240, 13880, 25156, 26372, 31445, 32965, 50312, 52744, 62890, 65930, 114857, 125780, 131860, 229714, 251560, 263720, 459428, 574285, 918856, 1148570, 2182283, 2297140, 4364566, 4594280, 8729132, 10911415, 17458264, 21822830, 43645660, 87291320]

約数ペア:

[(1, 87291320), (2, 43645660), (4, 21822830), (5, 17458264), (8, 10911415), (10, 8729132), (19, 4594280), (20, 4364566), (38, 2297140), (40, 2182283), (76, 1148570), (95, 918856), (152, 574285), (190, 459428), (331, 263720), (347, 251560), (380, 229714), (662, 131860), (694, 125780), (760, 114857), (1324, 65930), (1388, 62890), (1655, 52744), (1735, 50312), (2648, 32965), (2776, 31445), (3310, 26372), (3470, 25156), (6289, 13880), (6593, 13240), (6620, 13186), (6940, 12578)]